Tutorial
Installation
This app is
available
through the Play Store with the app.attestation.auditor.play
app id. Play Store releases go through review and it usually takes around 1 to
3 days before the Play Store pushes out the update to users. Play Store releases use
Play Signing, so we use a separate app id from the releases we publish ourselves to
avoid conflicts and to distinguish between them.
Releases of the app signed by GrapheneOS with the
app.attestation.auditor
app id are published in the GrapheneOS app
repository and on GitHub. These releases are also bundled as part of GrapheneOS.
You can use the GrapheneOS
app repository client on Android 12 or later for automatic updates.
Releases are initially pushed out through the Alpha channel channel for both the Play Store and our app repository, then get moved to the Beta channel and finally the Stable channel.
Local verification
The device being verified (Auditee) must be one of the supported devices. Android developer previews aren't supported since the hardware verified version is set to a placeholder value. The device performing verification (Auditor) just needs to be any Android 10 or higher device with a camera.
- press Auditor on the device that will be verifying the Auditee
- press Auditee on the device that's going to be verified
- point the camera of the Auditee at the QR code on the Auditor to read the challenge
- tap the QR code on the Auditor to advance ahead (if you do this too early, you can press back)
- point the camera of the Auditor at the QR code on the Auditee to read the attestation
- view verification of the attestation results
An Auditor can verify any number of different Auditee devices. It shows a fingerprint and the first / last verification time in successful paired attestation results. An Auditee can be verified by any number of Auditors but there will be a different fingerprint for each unique pairing rather than the same fingerprint shown on each Auditor for the same Auditee.
Scheduled remote verification
To set up regularly scheduled remote verification via the remote attestation service:
- create an account on https://attestation.app/ from a separate device
- press the menu button in the app
- press the 'Enable remote verification' action in the menu
- scan the account QR code displayed on https://attestation.app/
- configure an alert email address to receive alerts if the device fails to provide valid attestations in time
- refresh https://attestation.app/ to view the initial attestation result
Expanding device support
Support for verifying a device needs to be added to the app based on at least one valid key attestation sample from the stock OS with the bootloader locked. The Auditor app can theoretically support verifying any Android devices launched with Android 8 or later. An upgrade to Android 8 isn't enough since hardware key attestation support is required and the minimum requirements only became mandatory with Android 8.
To submit a sample, open the menu from the action bar and select 'Submit sample data'. This will submit a sample attestation and device information, enabling the development of support for the device. It may take a few weeks before support is shipped in a new version of the app.
A valid key attestation sample for each device model along with a stripped down subset of the system properties is published on GitHub to help other projects interested in using key attestation.


<<< BACK <<<
STM-006: KEVM
Authors
Hildenbrandt, Everett and Saxena, Manasvi and Rodrigues, Nishant and Zhu, Xiaoran and Daian, Philip and Guth, Dwight and Moore, Brandon and Park, Daejun and Zhang, Yi and Stefanescu, Andrei and others
Venue and Year
CSF, 2018
Original Work
KEVM: A Complete Formal Semantics of the Ethereum Virtual Machine
Defense Modality
Exploratory
Core Method(s)
formal
Input-Output Mapping
bytecode => report
Targeted Contracts
Any Ethereum
Threat Model
Vulnerable contract, malicious contract, or both
both
Targeted Vulnerabilities


workbox-precaching
workbox-precaching
The precaching library intelligently caches and updates files during the install step of your service worker.
When given a list of URL's to precache, this module will go through each URL and check if the URL is already cached and, if it is, compare the hash to see if revision hash has changed.
If the revision is old or the entry isn't cached, this library will make a request for the asset and cache it, ensuring the the browsers HTTP cache is skipped by using Request.cache = 'reload'
or adding a cache busting search
parameter to the request.
Classes
BaseCacheManager
This class handles the shared logic for caching revisioned and unrevisioned assets.
RevisionedCacheManager
You can instantiate this class to add requests to a precache list and eventually install the assets by calling install() and to remove old entries call cleanup().


Project to Intercompare Regional Climate Simulations
(PIRCS)
Overview of
PIRCS
First Workshop
at Ames in 1994
Experiment I
Two-month simulation
of 1988 and 1993
Personnel
|
Feedback
--- Welcome the
th visitor ! ---


Wireless process analytical technologies (PAT) for cell and protein therapy developers.
'Skroot' = anglicized form of skrót; Polish for 'shortcut.' Faster routes to safer protein and cell therapy products.
'Laboratory' = tech development sandbox; a great place to work.


beam_nuggets.io.relational_db_api module¶
Wrapper of SqlAlchemy code used for reading from and writing to databases
-
class
beam_nuggets.io.relational_db_api.
SourceConfiguration
(drivername, host=None, port=None, database=None, username=None, password=None, create_if_missing=False)[source]¶ Bases:
object
Holds parameters for accessing a database.
User to pass database access parameters to
SqlAlchemyDB
.SourceConfiguration.url
provides the database url used by SqlAlchemy to connect to the database.Parameters: - drivername (str) –
name of the database backend. It specifies the target database type and the driver (DBAPI) used by SqlAlchemy to communicate with database. The following drivernames are supported by and tested on beam-nuggets:
- postgresql+pg8000: for PostgreSQL (pg8000 is the DB driver).
- mysql+pymysql: for MySQL.
- sqlite: for SQLite.
Additional drivers can be used after installing their corresponding python libraries. Refer to SqlAlchemy dialects for more information on the supported databases and the corresponding drivers.
- host (str) – database host name or IP.
- port (int) – database port number.
- database (str) – database name.
- username (str) – database username.
- password (str) – database password.
- create_if_missing (bool) – If set to True, it instructs to create a missing database before writing to it.
Examples
MySQL database
from beam_nuggets.io import relational_db src_cnf = relational_db.SourceConfiguration( drivername='mysql+pymysql', host='localhost', port=37311, username='root', database='test', create_if_missing=True, ) print(src_cnf.url) # mysql+pymysql://root@localhost:37311/test
PostgreSQL database
from beam_nuggets.io import relational_db src_cnf = relational_db.SourceConfiguration( drivername='postgresql', host='localhost', port=42139, username='postgres', password='pass', database='test' ) print(src_cnf.url) # postgresql://postgres:pass@localhost:42139/test
SQLite database
from beam_nuggets.io import relational_db src_cnf = relational_db.SourceConfiguration( drivername='sqlite', database='/tmp/test_db.sqlite' ) print(src_cnf.url) # sqlite:////tmp/test_db.sqlite
- drivername (str) –
-
class
beam_nuggets.io.relational_db_api.
SqlAlchemyDB
(source_config)[source]¶ Bases:
object
Provides functionality to read and write from and to relational DBs. It uses SqlAlchemy.
Parameters: source_config (SourceConfiguration) – Information for accessing the target database. -
write_record
(table_config, record_dict)[source]¶ Writes a single record to the specified table.
Parameters: - table_config (TableConfiguration) – specifies the target table,
how data should inserted and how to create it if it was
missing. See
TableConfiguration
notes on table creation. - record_dict (dict) – the record to be written
- table_config (TableConfiguration) – specifies the target table,
how data should inserted and how to create it if it was
missing. See
-
-
exception
beam_nuggets.io.relational_db_api.
SqlAlchemyDbException
[source]¶ Bases:
exceptions.Exception
-
class
beam_nuggets.io.relational_db_api.
TableConfiguration
(name, define_table_f=None, create_if_missing=False, primary_key_columns=None, create_insert_f=None)[source]¶ Bases:
object
Holds parameters for a database table. Used to pass table parameters to
SqlAlchemyDB
.Parameters: - name (str) – the table name.
- create_insert_f (function) –
a function that takes as input an SqlAlchemy table and a row record, and returns an statement for inserting the record into the table. The function doesn’t execute the insert statement. If not specified, the following default implementations are used:
create_upsert_mysql()
for MySQL tables.create_upsert_postgres()
for PostgreSQL tables.create_insert()
for other databases.
As a mechanism to recover from failures, beam runners will attempt to apply a transform multiple times on the same data; because of that it is recommended to implement idempotent writes (e.g.
create_upsert_mysql()
andcreate_upsert_postgres()
) to avoid data inconsistency issues arising from this beam behavior. The function has the following signature: (sqlalchemy.sql.schema.Table
,dict
) ->sqlalchemy.sql.dml.Insert
. - create_if_missing (bool) – if set to True and the table is missing
SqlAlchemyDB
will create the table. See below notes on new table creation. See below note how this is used when creating new tables. - primary_key_columns (list) – list of column names to be used as primary key (if multiple columns are specified, a composite key is created), when creating the table. See below notes on new table creation.
- define_table_f (function) – A function for defining an SqlAlchemy
table (the function doesn’t create the table); the definition is
used when creating the table. The function has the following
signature: (
Sqlalchemy.Metadata
) ->sqlalchemy.Table
. See below notes on how this is used when creating missing tables. See this define table tutorial for how to implement the function.
Notes
When attempting to write to a missing database table,
SqlAlchemyDB
will handle the situation based on the valuescreate_if_missing
,primary_key_columns
anddefine_table_f
of the passedTableConfiguration
, as follows:- If the table is missing and
create_if_missing
is set to False (default),SqlAlchemyDB
will raise an exception. - Only when the target table is missing and
create_if_missing
is set to True, table creation is attempted. This is the assumed state for all the following cases. - If
define_table_f
is specified, a new table will be created using the table definition returned bydefine_table_f
, irrespective ofprimary_key_columns
. - If
primary_key_columns
is specified anddefine_table_f
is None, a new table will be created using the columns specified inprimary_key_columns
as the primary key. The full column list and their types are inferred automatically using the first record to be written. Seeinfer_db_type()
for information on the how the database column types are inferred from the python types. Ifprimary_key_columns
is also None, an auto_increment Integer column will be created and used as primary key this is done as some databases require a primary key to be specified when creating tables.
Examples
A configuration for creating the table if missing using the specified columns to create the primary key.
from beam_nuggets.io import relational_db table_config = relational_db.TableConfiguration( name='students', create_if_missing=True, primary_key_columns=['id'] )
A configuration for creating the table if missing using the specified definition.
from sqlalchemy import Table, Integer, String, Column from beam_nuggets.io import relational_db table_name = 'students' def define_students_table(metadata): return Table( table_name, metadata, Column(ID, Integer, primary_key=True), Column(NAME, String(100)), Column(AGE, Integer) ) table_config = relational_db.TableConfiguration( name=table_name, create_if_missing=True, define_table_f=define_students_table )
-
beam_nuggets.io.relational_db_api.
create_insert
(table, record)[source]¶ Creates a statement for inserting the passed record to the passed table. The created statement is not executed by this function.
For information on creating insert and update statements Refer to these SqlAlchemy documentation and tutorial.
Parameters: - table (sqlalchemy.sql.schema.Table) – database table metadata.
- record (dict) – a data record, corresponding to one row, to be inserted.
Returns: a statement for inserting the passed record to the specified table.
Return type: sqlalchemy.sql.dml.Insert
-
beam_nuggets.io.relational_db_api.
create_upsert_mysql
(table, record)[source]¶ Creates a statement for inserting the passed record to the passed table; if the record already exists, the existing record will be updated. This uses MySQL on_duplicate_key_update (hence upsert), and that why the returned statement is valid only for MySQL tables. Refer to this SqlAlchemy MySQL documentation for more information.
The created statement is not executed by this function.
Parameters: - table (sqlalchemy.sql.schema.Table) – database table metadata.
- record (dict) – a data record, corresponding to one row, to be inserted.
Returns: a statement for inserting the passed record to the specified table.
Return type: sqlalchemy.sql.dml.Insert
-
beam_nuggets.io.relational_db_api.
create_upsert_postgres
(table, record)[source]¶ Creates a statement for inserting the passed record to the passed table; if the record already exists, the existing record will be updated. This uses PostgreSQL on_conflict_do_update (hence upsert), and that why the returned statement is just valid for PostgreSQL tables. Refer to this SqlAlchemy PostgreSQL documentation for more information.
The created statement is not executed by this function.
Parameters: - table (sqlalchemy.sql.schema.Table) – database table metadata.
- record (dict) – a data record, corresponding to one row, to be inserted.
Returns: a statement for inserting the passed record to the specified table.
Return type: sqlalchemy.sql.dml.Insert
-
beam_nuggets.io.relational_db_api.
infer_db_type
(val, drivername)[source]¶ Infer a database column type for storing values of the same type as the passed variable val in a database identified by drivername.
Column types are inferred based on the following mapping:
Python type Column type bool
Boolean
<number>
Float
(All python numbers are mapped to Float columns)datetime.datetime
DateTime
datetime.date
Date
<default>
String
for PostgreSQL and SQLite and String(VARCHAR_DEFAULT_COL_SIZE
) for other databasesParameters: - val (object) – value used to infer the database column type.
- drivername – specifies the database type and driver used for connecting to the database (the driver information isn’t used to infer the column type).
Returns: one of sqlalchemy column types.
Return type: object


Pay attention to the items read out by the caller.
If you hear an item that pertains to you, click that square.
Once you have 5 squares in a row, column, or diagonal all marked, you have a 'bingo' and you've won!
If you get a bingo, please let your caller know! 🙂
Prior to starting, ensure that all players know the rules.
Once gameplay begins read one item every so often, pausing to give the players a chance to search their board for the read item.
Once a player indicates that they have bingo, have them read aloud their string of five items that won the game for them. 🙂
[click to return]


--- title: Tutorial: Creating tweetrel keywords: fastai sidebar: home_sidebar nb_path: "tutorial_build.ipynb" ---
from fastcore.utils import *
In order to create this library, we started out by following the initial steps of the nbdev tutorial to create a basic project structure.
We also ensured we had installed ghapi, by following the instructions on that link.
Once we had a repo cloned, based on the nbdev_template
template, we ran in our terminal:
gh-create-workflow tweet release --contexts secrets
Note that we add --contexts secrets
because we'll need access to the secrets context, which we'll be using to store our Twitter API keys.
The basic workflow skeleton that this creates is:
wf_path = Path('.github/workflows')
scr_path = Path('.github/scripts')
wf_path.ls(),scr_path.ls()
We don't often need to make changes to .yml
file (except perhaps to add an extra pip
package, or restrict the event rules), so we'll focus here on creating the Python script.
The Twitter part of this tutorial isn't the main thing we want to explain, but the main thing to note carefully here is how to access secrets in your workflow.
In order to send tweets, we'll send to use the Twitter API -- we'll use the tweepy
library for this:
import tweepy
The Twitter API requires authentication, so we'll store our details in a GitHub secret. We'll just use one secret, we our keys stored space delimited. We generally use an organization secret, so that we can update secrets in one place as needed.
Contexts are passed to ghapi as json-encoded environment variables. Each variable name starts with CONTEXT_
-- so for instance the secrets
context is CONTEXT_SECRETS
. In order to simulate this when testing, ensure that you have set an appropriate environment variable before importing ghapi
. We've put our JSON encoded secrets for testing into a .secrets
file (which we added to .gitignore
so it wouldn't be pushed to our repo), so we'll use it here.
os.environ['CONTEXT_SECRETS'] = Path('.secrets').read_text()
Now we can import ghapi
.
from ghapi import *
If you now check the context_secrets
variable, you should find your secrets available as an AttrDict
:
assert 'TWITTER' in context_secrets
Now we'll create a function to unpack our keys, tokens, and secrets for Twitter auth, and login to the API:
def twitter_api():
consumer_key,consumer_secret,access_token,access_token_secret = context_secrets.TWITTER.split()
auth = tweepy.OAuthHandler(consumer_key,consumer_secret)
auth.set_access_token(access_token,access_token_secret)
return tweepy.API(auth)
We can test our login by creating and deleting a tweet:
import time
twapi = twitter_api()
stat = twapi.update_status("Please ignore - testing API")
time.sleep(1)
twapi.destroy_status(stat.id)
We can get a sample release
event payload as follows:
example = example_payload(Event.release)
list(example), example.action
The release
section has the following keys:
', '.join(example.release)
We can create a function that formats a tweet based on this information:
def tweet_text(payload):
rel = payload.release
owner,repo = re.findall(r'https://api.github.com/repos/([^/]+)/([^/]+)/', rel.url)[0]
tweet_tmpl = "New #{repo} release: v{tag_name}. {html_url}\n\n{body}"
res = tweet_tmpl.format(repo=repo, tag_name=rel.tag_name, html_url=rel.html_url, body=rel.body)
if len(res)<=280: return res
return res[:279] + "…"
...and test it:
print(tweet_text(example))
The sample release payload from GitHub happens to have an empty body
, but other than that, this looks good.
That's all we need to create our function:
def send_tweet():
payload = context_github.event
if 'workflow' in payload: payload = example_payload(Event.release)
if payload.action == 'published': return twitter_api().update_status(tweet_text(payload))
We can pop this into our python script, along with send_tweet()
, and test it out in the same way we showed in the GitHub Actions tutorial:
api = GhApi(owner='fastai', repo='tweetrel', token=github_token())
wf = api.actions.get_workflow('tweet-release.yml')
api.actions.create_workflow_dispatch(wf.id, ref='master')
One issue is that currently you'll see three workflows being triggered on the Actions tab in GitHub. That's because the "created" and "released" types are resulting in a trigger, as well as "published". Our function is checking which is being used, and only tweeting for "published", but the runs are still being recorded. This isn't necessarily a big problem, but if you'd like things to be cleaner, you can edit the tweet-release.yml
file to add the following line after the release:
line:
types: [published]
It's also possible to do a more complete end-to-end test by actually making a release, checking that a new run is created, and checking the result of that run:
n_runs = api.actions.list_workflow_runs(wf.id).total_count
try:
rel = api.create_release('test', body='body')
time.sleep(30)
runs = api.actions.list_workflow_runs(wf.id)
test(runs.total_count, n_runs, gt)
test_eq(runs.workflow_runs[0].conclusion, 'success')
finally: api.delete_release(rel)


Arbitration Rule
Management of Arbitration Rules is provided via the following collection:
/api/arbitration_rules
Full CRUD actions on arbitration_rules is available:
Querying Arbitration Rules
Querying all arbitration rules in the system is simply:
GET /api/arbitration_rules
Getting details on a specific arbitration rule:
GET /api/arbitration_rules/:id
Creating Arbitration Rules
Arbitration Rules can be created via a POST to the arbitration_rules collection or via the create action signature which also allows creation of multiple arbitration_rules in a single request.
POST /api/arbitration_rules
{
"description" : "admin rule",
"operation" : "inject",
"arbitration_profile_id" : 5,
"expression" : {
"EQUAL" : {
"field" : "User-userid",
"value" : "admin"
}
"
}
or creating multiple arbitration rules:
{
"action" : "create",
"resources" : [
{ "description" : "admin rule", "operation" : "inject", ... },
{ "description" : "user rule", "operation" : "inject", ... },
...
]
}
|
Please refer to the Resource Attributes page for a list of available attributes when creating Arbitration Rules. |
Editing Arbitration Rules
POST /api/arbitration_rules/:id
{
"action" : "edit",
"resource" : {
"description" : "new admin rule"
}
}
or editing multiple arbitration_rules:
POST /api/arbitration_rules
{
"action" : "edit",
"resources" : [
{
"href" : "http://localhost:3000/api/arbitration_rules/101",
"priority" : 5
},
{
"href" : "http://localhost:3000/api/arbitration_rules/102",
"priority" : 5
},
...
]
}
Deleting Arbitration Rules
Arbitration Rules can be deleted via either the delete POST action or via the DELETE HTTP method.
POST /api/arbitration_rules/101
{
"action" : "delete"
}
or simply:
DELETE /api/arbitration_rules/101
Deleting multiple Arbitration Rules can be done as follows:
POST /api/arbitration_rules
{
"action" : "delete",
"resources" : [
{ "href" : "http://localhost:3000/api/arbitration_rules/101" },
{ "href" : "http://localhost:3000/api/arbitration_rules/102" },
...
]
}


FELIX MUTUA KASYOKI
Below are the projects that i have created during our week one training :
- My first webpage, click this link to access my first webpage
- TO access the latest songs, click on this link to access the lates songs
- Games,click this link to accessmy favourite games website
ABOUT FELIX MUTUA KASYOKI
I am 27 years old. i am tall and slender, i love swimming soo much.
i live in Naivasha and currently working at Safaricom PLC as a customer experience executive
01/2014 to 04/2014
- Vehicle inspection, both mechanical and electrical systems.
- General servicing of Heavy Plant Equipment.
- Designing of mechanical parts in the workshop.
- Troubleshooting of machines in the fleet section.
05/2016 to 12/2016
- Installation of G-code programs in Computer Numerical Control machines.
- General machine modification and maintenance.
- Lathe operations.
- Surface grinding operations.
- General machine maintenance and modification.
12/04/2017 to date
- Support customer to use Safaricom products.
- Feedback link to the business for continuous improvement of products, services and processes.
- manages and resolves customer complaints.
- Documents all customer interaction information according to standard operating procedures.
- BACHELOR OF SCIENCE: MECHATRONIC ENGINEERING
- DEDAN KIMATHI UNIVERSITY OF TECHNOLOGY
- Second Class Honours Upper Division
I am proficient in:
- Javascript programming
- Autodesk Inventor
- Autocad


How to make your own collection of Arbor functions and workflows
When working in Arbor, you will be uploading your own data, and may want to create your own functions and workflows. Everything in Arbor is organized into collections (for example, the phylogeny and base collections). You can create your own collection to store data and workflows. Later I will discuss how you can share any items in your collection with colleagues.
Get started
You will need to open the Arbor web app. For this exercise, you will need to log in; your user name should match the personal part of the email address you used to register for the meeting. For example, if your registration email is<EMAIL_ADDRESS>then your user name is lukeh. Your password will be given to you by the instructor.
Once you are logged in, your screen should look like this:
You will need the anolis example data files, anolis.phy and anolis.csv. Save those files somewhere on your computer.
Create a new collection
On the left side of the screen, just below the “Browse or drop files” box, is the place you will need to focus to create your new collection. In the box there you can type the name of a new collection - let’s use testCollection here, so type that in the box. If you want the collection to be public, you can tick the public box. Otherwise, the collection will be private and only visible to you. Keep this test collection private for this example. Now click the “New collection” button, and your collection will be created.
Immediately after creating my new collection. Did it work?
Scroll down to see more collections, the one you just created will be at the bottom. Click on both the “eye” and the “pencil” next to your collection. The “eye” lets you see the things in your collection, and the pencil gives write access so that you can add things to the collection (and delete!).
Saving data to your new collection
Once you have created your collection, you can add data to it. Drag the “anolis.csv” file to the “Browse or drop files” box to load it into your browser. You can now save this file to your new collection. To do that, scroll down to the very bottom of the bottom browser frame, where you should see “Save or download data.” “anolis.csv” should show up there.
As long as the pencil next to your new collection is highlighted, you can now click “Save to checked collection” to save this data file to the new collection. Try that now. The name of the collection should show up next to the datafile:
Creating new analyses and workflows in your new collection
Now, move over to the “Analysis” tab. You can create new analyses and workflows in your new collection by clicking on “+ New analysis” or “+ New workflow.”
Let’s start with a simple new analysis. We can create a function that will automatically multiply all the branch lengths in our tree by some factor, x. We will call this new function “multiplyBranchLengths.” Our function will have two inputs, a phylogenetic tree and a branch multiplier x, and a single output, the rescaled tree.
The first thing to do is to create our new analysis. Put the function name, “multiplyBranchLengths,” in the box under “Create new analysis.”
Now, push the button that says “New analysis.”
You have just created an (empty) analysis. Now click “Show script” and “Edit” to allow us to put some code into our analysis. You should also change the language to “R” instead of “Python” (look in the row of options after >Setup and run). Your screen should now look like this:
We can now paste a snippet of R code into this window to make our analysis happen. All we need is two lines:
rescaledPhy <- phy
rescaledPhy$edge.length <- rescaledPhy$edge.length * x
Paste that into your analysis:
We now need to specify the function inputs and outputs. First, click the small “+” button next to “Inputs” at the bottom of the page:
You can then specify a name for this input, as well as its Id in the code. Fill out the “Configure input” box like this, then click “Update”:
Do the same thing to create a second input for our branch multiplier, but with the “Configure input” box filled out for a number:
If you do this right, you should see the Inputs specified:
Now, make an output by clicking the + next to “Outputs.” Fill out the “Configure output” box:
Now you can see all of your inputs and outputs:
OK! Make sure to click “Save” to save all of your work.
You should see a confirmation that your work is saved:
Now, let’s try running your new function. Once you have saved the function, click on “> Setup and run.” Fill out the box that appears:
Once the function runs, you should get a green success message:
Next, we will try to use this rescaled tree to do something.
Building a workflow that includes your new function
We will now build a workflow that includes two steps: rescaling your tree, and then fitting a model of evolution for a trait on that rescaled tree.
Create a new analysis called “rescaledTraitEvo,” but this time make sure to click the button that says “New workflow.”
As long as you have “Show script” and “Edit” active, you should see a blank space where your workflow will go.
Let’s add the two functions that will be part of our workflow. First. using the “Select analysis” chooser, find your new function (multiplyBranchLengths) and use the “+Add to workflow” button to add it to your workflow.
Once you do that, your function should appear as a workflow block.
Now add a block for the other function you need, “fit discrete.” It is part of the “traitModels” collection, so make sure that collection is highlighted as visible under the Data Management tab.
Now select the function you need and click “+Add to workflow”
Shazam! the function appears in your workflow. But wait? What happened to the other function?
Don’t worry, it was just hiding underneath.
OK, now we just need to wire this workflow together! First, we know that the output tree from “multiplyBranchLengths” goes to the input tree of “Fit continuous.” Connect those two with a wire.
Everything else is a user input or output. To create those, just click on each tab.
You might need to move things around to make the workflow look nice.
Make sure to save your workflow!
We can now use the “> Setup and run” button to run our workflow.
Designate these inputs:
It worked!
We can see the results in the Visualization tab:
Click “Update”
Compare this to what we get with the original tree. Notice any differences? Explain!
Loading a shared workflow to your collection
Next, I will show you how to load in a workflow file that has been downloaded in JSON format. Imagine, for example, that a colleague emailed you an arbor workflow called mywork.json. You can download such a file here. (NOTE: you might have to right-click and “save as” for this file, or save as plain text with extension .json if it opens in your browser). Now, to load that workflow into your new collection, click on “Upload… “ and find the fitTraitModels.json file. The new workflow is now in your collection!
You can see the new workflow by clicking “Show script.”
You can even edit this workflow using the “Edit” button (keep in mind that you have to hit “Save” for the changes to go into effect).
Finally, you can download your new workflow using the “Save” button, which generates a json-formatted version of your workflow. This text file includes all of the information and code that you need to run your workflow - but not the data! You can easily share these json files with collaborators or make them available on Github or other archives.


How To Use
It's pretty simple. You just perform a request towards https://api.boingfwip.net/
with any HTTP method and it will return a JSON with your request info/headers/etc and payload.

What's With the Name?
A phrase used by the character Ted and his band on the popular television series "scrubs". This is a short hand version of "I'm rubber and you're glue" implying someone's insult bounces off of you, creating a "boing" sound and is thrown back through the air making a "fwip" sound.  Ended up with Boingfwip, because reasons..


Elon Musk says Tesla's first European production plant will be in Berlin
Just as Shanghai plant is starting up
by ReutersTesla Chief Executive Officer Elon Musk said on Tuesday the electric-car maker is going to build a new vehicle factory as well as an engineering and design center in the German capital, Berlin.
Dubbing the plant "Giga Berlin" in reference to the existing Gigafactories in Nevada and New York, Musk detailed on Twitter that it "will build batteries, powertrains and vehicles, starting with Model Y." Earlier in the day at an awards ceremony in Germany, he said the factory will be near the new Berlin airport.
Musk had said in June last year that Germany was a frontrunner for its first factory in Europe. Tesla has an engineering firm in Pruem, Germany, that specializes in automated manufacturing systems for battery-making plants.
In October, Reuters reported that the automaker is aiming to start production for its factory in China amid uncertainties around orders, labor and suppliers.
The automaker reported a profit in its third quarter in late October, surprising investors who doubted about Tesla's profitability and its ability to compete with larger global rivals.


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$(function () {
'use strict';
Run after the DOM loads
$(function () {
'use strict';
Create a map object
var map = geo.map({
node: '#map',
center: {
x: -125,
y: 36.5
},
zoom: 4
});
Add the osm layer with a custom tile url
map.createLayer(
'osm',
{
url: 'http://tile.stamen.com/toner-lite/{z}/{x}/{y}.png',
attribution: ['Map tiles by Stamen Design,',
'under CC BY 3.0.',
'Data by OpenStreetMap, under',
'ODbL.'
].join(' ')
}
);
Create a layer to put the features in. We could need point, line, and polygon features, so ask for a layer that supports all of them.
var layer = map.createLayer('feature', {features: ['point', 'line', 'polygon']});
map.draw();
Initialize the json reader.
var reader = geo.createFileReader('jsonReader', {'layer': layer});
At this point we could just attach the reader to the map like this:
map.fileReader(reader);
This would allow the user to drop a geojson file onto the map to render it. For this demo, we are creating an editable text box that will call the reader.
Initialize a json string in case the ajax load fails.
var data = '{}';
Load a default json to provide an example of a working demo with styled features.
$.ajax({
url: 'data.json',
dataType: 'text',
success: function (_data) {
On successful load save the data as a string
data = _data;
},
complete: function () {
On completion of the ajax request, generate a text editor over the map using CodeMirror.
var text;
var config = {
mode: 'application/json',
matchBrackets: true,
gutters: ['CodeMirror-lint-markers', 'CodeMirror-foldgutter'],
foldGutter: CodeMirror.fold.brace,
lint: CodeMirror.lint.json
};
text = new CodeMirror(document.body, config);
Here we listen for changes in the text area content.
text.on('changes', function () {
try {
Try to parse the json here. If it fails, then we just exit.
jsonlint.parse(text.getValue());
} catch (err) {
return;
}
The json is valid so we start by clearing all of the current features from the layer.
layer.clear();
Now we call the reader to create the features from the string inside the text box.
reader.read(
text.getValue(),
function (/* features */) {
This callback is called after the features are generated. The feature objects array is given as an argument to this callback for inspection or modification. In this case, we just want to redraw the map with the new features.
map.draw();
}
);
});
Initialize the text box with the default json data.
text.setValue(data);
}
});
});


Hyperapse.js - JavaScript hyper-lapse utility for Google Street View. Author: Peter Nitsch Copyright: Teehan+Lax 2013 Source: Hyperlapse.js, line 1


In 1997, NORMAN TECH successfully developed 0830 body protector for motorcyclist, becoming the first protector manufacturer in Asia to obtain CE certification.
Has more than 20 years of experience in the development of body protector. We have a strong R & D team and production line that can provide customers with both economic and quality protectors.
NORMANTECH has been committed to the development of more diverse materials and production technology of body protectors for many years to meet the diverse needs of the market.
PROVIDE SOME COOL OPTIONS FOR YOU has always been a development concept implemented by NORMAN TECH.


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Following a short-lived recovery, EUR/USD came under renewed pressure and fell to fresh 14-month lows after Draghi’s speech before the Committee on Economic and Monetary Affairs of the European Parliament.
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Price Patterns Connections in Different Time frames
This is part III of the series related to setups and entries in Forex and Stocks using continuations. However the information can also be used independently.
Price Patterns Connections in Different Time frames
This is part III of the series related to setups and entries in Forex and Stocks using continuations. However the information can also be used independently.


UUID
Name
Type
Location
State
Level
Add sensor
Name:
Type:
Location:
Level:
State:
Add sensor with ID
Name:
Name:
Type:
Location:
Level:
State:
Username
Password
Role
Add user
Username:
Password:
Role (ADMIN, ANDROID, SENSOR):
Id
Type
Message
Id
Messge
Add message of the day:
Message:


Making open source more inclusive
Red Hat is committed to replacing problematic language in our code, documentation, and web properties. We are beginning with these four terms: master, slave, blacklist, and whitelist. Because of the enormity of this endeavor, these changes will be implemented gradually over several upcoming releases. For more details, see our CTO Chris Wright’s message.
1. Introduction
1.1. About the Web Console Guide
This guide is for engineers, consultants, and others who want to use the Migration Toolkit for Applications ({ProductShortName}) to migrate or modernize Java applications or other components. It describes how to install and use the web console to manage migration or modernization projects and analyze applications.
1.2. About the Migration Toolkit for Applications
What is the Migration Toolkit for Applications?
The Migration Toolkit for Applications ({ProductShortName}) is an extensible and customizable rule-based tool that simplifies the migration and modernization of Java applications.
{ProductShortName} examines application artifacts, including project source directories and application archives, and then produces an HTML report highlighting areas needing changes. {ProductShortName} supports many migration paths including the following examples:
-
Upgrading to the latest release of Red Hat JBoss Enterprise Application Platform
-
Migrating from Oracle WebLogic or IBM WebSphere Application Server to Red Hat JBoss Enterprise Application Platform
-
Containerizing applications and making them cloud-ready
-
Migrating from Java Spring Boot to Quarkus
-
Updating from Oracle JDK to OpenJDK
For more information about use cases and migration paths, see the {ProductShortName} for developers web page.
How does the Migration Toolkit for Applications simplify migration?
The Migration Toolkit for Applications looks for common resources and known trouble spots when migrating applications. It provides a high-level view of the technologies used by the application.
{ProductShortName} generates a detailed report evaluating a migration or modernization path. This report can help you to estimate the effort required for large-scale projects and to reduce the work involved.
How do I learn more?
See the Introduction to the Migration Toolkit for Applications to learn more about the features, supported configurations, system requirements, and available tools in the Migration Toolkit for Applications.
1.3. About the web console
The web console for the Migration Toolkit for Applications allows a team of users to assess and prioritize migration and modernization efforts for a large number of applications. It allows you to group applications into projects for analysis and provides numerous reports that highlight the results.
2. Installing the web console
You can install the web console on Linux, Windows, macOS, or Red Hat OpenShift Container Platform.
2.1. Installing the web console on Linux, Windows, or macOS
You can install the web console on Linux, Windows, or macOS operating systems and access the web console in a browser.
The web console has been tested with Chrome and Firefox.
Prerequisites
-
Java Development Kit (JDK) installed. {ProductShortName} supports the following JDKs:
-
OpenJDK 1.8
-
OpenJDK 11
-
Oracle JDK 1.8
-
Oracle JDK 11
-
-
8 GB RAM
-
If you are installing on macOS, the value of
maxproc
must be2048
or greater.
-
Navigate to the {ProductShortName} Download page and download the web console
Local install & OpenShift
file. -
Extract the
.zip
file to a directory of your choice.NoteIf you are installing on a Windows operating system:
-
Extract the
.zip
file to a folder namedmta
to avoid aPath too long
error. -
If a Confirm file replace window is displayed during extraction, click Yes to all.
The installation directory is referred to as
<{ProductShortName}_HOME>
in this guide. -
-
Start the web console:
-
Linux operating system:
$ <{ProductShortName}_HOME>/run_mta.sh
-
Windows operating system:
C:\<{ProductShortName}_HOME>\run_mta.bat
-
-
Open a browser and navigate to
http://localhost:8080/mta-web
. The web console login page is displayed in your browser.Figure 1. Web console login pageThe default user is
mta
and the default password ispassword
.
2.2. Installing the web console on OpenShift Container Platform
You can install the web console on OpenShift Container Platform 4.6 and later versions with the Migration Toolkit for Applications Operator.
You can install the web console on OpenShift Container Platform 4.2-4.5 by importing a template and instantiating it to create the web console application.
2.2.1. Installing the web console on OpenShift Container Platform 4.6 and later
You can install the web console on OpenShift Container Platform 4.6 and later versions with the Migration Toolkit for Applications Operator.
|
Note
|
The Migration Toolkit for Applications Operator is a Community Operator. Red Hat provides no support for Community Operators. |
-
4 vCPUs, 8 GB RAM, and 40 GB persistent storage.
-
One or more projects in which you can install the web console.
ImportantDo not install the web console in a default project.
-
cluster-admin
privileges to install the Migration Toolkit for Applications Operator. -
project-admin-user
privileges to install the web console application in a project.
-
Log in to the OpenShift web console as a user with
cluster-admin
privileges. -
Click Operators → OperatorHub.
-
Use the Search by keyword field to locate the Migration Toolkit for Applications Operator.
-
Click Install.
-
Select a project from the Installed Namespace list and click Install.
-
Click Operators → Installed Operators to verify that the Operator is installed.
-
Log in to the OpenShift web console as a user with
project-admin-user
privileges. -
Switch to the Developer perspective and click +Add.
-
In the Add view, click Operator Backed.
-
Click the Migration Toolkit for Applications Operator.
-
Click Create.
-
Review the application settings and click Create.
-
In the Topology view, click the
mta-web-console
application and then click the Resources tab. -
Click the
secure-mta-web-console
route to open the web console in a new browser window. -
Enter the user name
mta
and the passwordpassword
and click Log in.
2.2.2. Installing the web console on OpenShift Container Platform 4.2-4.5
You can install the web console on OpenShift Container Platform 4.2-4.5 by importing a template and instantiating it to create the web console application.
-
4 vCPUs, 8 GB RAM, and 40 GB persistent storage.
-
One or more projects in which you can install the web console.
ImportantDo not install the web console in a default project.
-
Navigate to the {ProductShortName} Download page and download the web console
Local install & OpenShift
file. -
Extract the
.zip
file to a directory, for example,{ProductShortName}_HOME
. -
Launch the OpenShift web console.
-
Click the Import YAML button in the upper-right corner of the web console.
-
Select mta from the Project list.
-
Copy the contents of the appropriate template from the
{ProductShortName}_HOME/openshift/templates/
directory into the Import YAML field.Two templates are provided, one for shared storage and one without shared storage.
-
Click Create.
-
Switch to the Developer perspective and click +Add.
-
In the Add view, click From Catalog.
-
Click the Migration Toolkit for Applications template.
-
Click Instantiate Template.
-
Review the application settings and click Create.
-
In the Topology view, click the
mta-web-console
application and then click the Resources tab. -
Click the
secure-mta-web-console
route to open the web console in a new browser window. -
Enter the user name
mta
and the passwordpassword
and click Log in.
2.2.3. Troubleshooting a web console installation on OpenShift
This section describes how to troubleshoot a web console installation on OpenShift Container Platform.
Downloading logs using the OpenShift console
You can download pod logs using the OpenShift console.
-
Open the OpenShift console and navigate to Applications → Pods.
-
Click the
mta-web-console
pod. -
Click Logs.
-
Click Download to download and save a log.
Downloading logs using the CLI
You can download pod logs using the CLI.
-
Obtain the pod names:
$ oc get pods -n <project-name>
The output resembles the following:
NAME READY STATUS RESTARTS AGE eap-builder-1-build 0/1 Completed 0 1d mta-postgresql-1-hfbdn 1/1 Running 0 1d mta-sso-1-build 0/1 Completed 0 1d mta-web-console-1-build 0/1 Completed 0 1d mta-web-console-1-vt7s5 1/1 Running 1 1d sso-1-wjl2n 1/1 Running 1 1d
-
Use
oc logs
to examine the pod log:$ oc logs <pod>
NoteYou can redirect the output to obtain a copy of the current log:
$ oc logs <pod> > ./<pod>.log
No route to host
error
The No route to host
error in the mta-web-console-executor
log indicates that the mta-web-console-executor
pod cannot connect to the mta-web-console
pod:
13:44:03,501 SEVERE [org.jboss.windup.web.messaging.executor.ExecutorBootstrap] (main) Could not start messaging listener due to: Failed to connect to any server. Servers tried: [http-remoting://<IP_ADDRESS>:8080 (java.net.NoRouteToHostException: No route to host)]: javax.naming.CommunicationException: Failed to connect to any server. Servers tried: [http-remoting://<IP_ADDRESS>:8080 (java.net.NoRouteToHostException: No route to host)]
This error occurs because the mta-web-console-executor
pod starts running before the mta-web-console
pod.
Check the mta-web-console-executor
log after the mta-web-console
pod has been running for a few minutes.
Insufficient resources
The following conditions indicate insufficient resources:
-
The
mta-web-console
pod is not running and the following error is displayed on the Events tab of the Pod Details screen in the OpenShift console:0/9 nodes are available: 4 Insufficient cpu, 4 MatchNodeSelector, 9 Insufficient memory.
-
The
mta-web-console-deploy
,mta-web-console-executor-deploy
, andmta-web-console-postgresql-deploy
pods time out and the following error is displayed in the logs:error: update acceptor rejected mta-web-console-executor-1: Pods for rc 'mta/mta-web-console-executor-1' took longer than 600 seconds to become available
To resolve these problems:
-
Install and run the cluster capacity tool to determine how many pods you can schedule.
-
Change the load on the cluster resources by performing one of the following actions:
-
Increase the limit ranges or the resource quotas of your project.
-
Reduce the requested resources of your project. The web console requires a minimum of 4 vCPUs and 8 GB RAM.
-
Run fewer jobs.
-
-
Redeploy the web console.
Reporting issues
{ProductShortName} uses Jira as its issue tracking system. If you encounter an issue executing {ProductShortName}, submit a Jira issue.
3. Using the web console to analyze applications
You can create a project in the web console to analyze your applications.
Each project groups the applications for a specific analysis, which you can configure with custom rules and labels.
The analysis process generates reports that describe the readiness of your applications for migration or modernization.
3.1. Creating a project
You can create a project in the web console with the Create project wizard.
-
In the web console, click Projects.
-
Click Create project.
-
Enter a unique name for the project, an optional description, and click Next.
-
To upload applications, click the Upload tab, click Browse, select the application files you want to upload, and click Close.
Uploading applications stores them directly on the {ProductShortName} server.
-
To register a server path, click the Server path tab and enter the Server-side path of the application in the field.
Registering the server path of an application ensures that {ProductShortName} always uses the latest version.
-
Click Next.
-
Click one or more transformation targets.
-
Click Next.
-
Select packages and click > to include them in the analysis.
-
Click Next.
-
If you want to add a custom rule, click Add rule.
See the Rules Development Guide for more information.
-
To upload a ruleset file, click the Upload tab, click Browse, select one or more files, and click Close.
A ruleset file must have an
.mta.xml
or.windup.xml
extension. The uploaded file is stored on the {ProductShortName} server. -
To register the server path of a ruleset file, click the Server path tab, enter the Rules path, and click Save.
Registering the server path ensures that the {ProductShortName} server always uses the latest version of the ruleset files.
-
-
Click Next.
-
If you want to add a custom label, click Add label.
-
To upload a labelset file, click the Upload tab, click Browse, select one or more files, and click Close.
A labelset file must have an
.mta.label.xml
or.windup.label.xml
extension. The uploaded file is stored on the {ProductShortName} server. -
To register a server path, click the Server path tab, enter the Labels path of the label files in the field, and click Save.
Registering the server path ensures that the {ProductShortName} server always uses the latest version of the labelset files.
-
-
Click Next.
-
Review the following Advanced options and make any necessary changes:
-
Target
-
Source
-
Exclude tags: Rules with these tags are not processed.
-
Additional classpath: Enter a space-delimited list of additional
.jar
files or directories so that they are available for decompilation or other analysis. -
Application name
-
Mavenize group ID
-
Ignore path: Enter a path for files to exclude from analysis.
-
Export CSV: Exports the report data as a CSV file.
-
Disable Tattletale: Disables generation of a Tattletale report for each application.
-
Class Not Found analysis: Enables analysis of Java files that are not available on the class path. This option should not be used if some classes are unavailable for analysis.
-
Compatible Files report: Generating a Compatible Files report might take a long time for large applications.
-
Exploded app: The input directory contains the unpackaged source files of an application.
-
Keep work dirs: Retains temporary files, for example, the graph database or extracted archive files, for debugging purposes.
-
Skip reports: HTML reports are not generated. Must be enabled if you enabled Export CSV.
-
Allow network access: This option reduces performance.
-
Mavenize: Creates a Maven project directory structure based on the structure and content of the application.
-
Source mode: Application files are raw source files, not compiled binaries.
-
-
Click Next.
-
Review your project and click Save or Save and run.
The project is displayed in the Projects screen.
3.2. Running a saved analysis
You can run a saved analysis.
-
In the web console, click Analysis results.
-
Select a project.
-
Click Run analysis.
A progress bar displays the progress of your analysis.
3.3. Viewing analysis results
The results of all analyses are grouped and listed by project on the Analysis results screen.
-
In the web console, click Analysis results.
-
Select a project from the list.
-
Click the number of the analysis you want to review.
The results are displayed in the Results screen, which contains two tabs: Details and Logs.
The Details tab displays important details of the analysis, such as status, start date, duration, and configuration settings.
The Logs tab displays the logs generated during the analysis.
3.4. Reviewing reports
The {ProductShortName} web console provides a set of detailed reports that can help you decide if you need to make any changes to your applications. You access these reports from the Analysis results screen.
The reports are described in detail in {ProductShortName} reports in the CLI Guide.
-
In the web console, click Analysis results.
-
Click the Reports icon beside the analysis you want to investigate.
The All applications screen of the reports is displayed.
3.5. Updating an analysis configuration
You can update an analysis configuration, for example, with a different transformation target, advanced option, or a custom rule. Then you can run the updated analysis in your project.
-
In the web console, click Analysis configuration.
-
Select a Project.
-
Click the appropriate tabs and make your changes.
-
Click Save or Save and run.
The project is displayed in the Projects screen.
3.6. Adding global custom rules
{ProductShortName} includes a preconfigured set of global rules, which apply to all projects.
You can define your own custom global rules.
For information on writing custom {ProductShortName} rules, see the {ProductShortName} Rules Development Guide.
-
In the web console, click Rules configuration.
-
Click Add rules.
-
To upload a ruleset file, click the Upload tab, click Browse, select one or more files, and click Close.
A ruleset file must have an
.mta.xml
or.windup.xml
extension. The uploaded file is stored on the {ProductShortName} server. -
To register the server path of a ruleset file, click the Server path tab, enter the Rules path, and click Save.
Registering the server path ensures that the {ProductShortName} server always uses the latest version of the ruleset files.
The Custom rules list displays the rules.
3.7. Adding global custom labels
{ProductShortName} includes a preconfigured set of global labels, which apply to all projects.
You can define your own custom global labels.
-
In the web console, click Labels configuration.
-
Click Add label.
-
To upload a labelset file, click the Upload tab, click Browse, select one or more files, and click Close.
A labelset file must have an
.mta.label.xml
or.windup.label.xml
extension. The uploaded file is stored on the {ProductShortName} server. -
To register the server path of a labelset file, click the Server path tab, enter the Labels path, and click Save.
Registering the server path ensures that the {ProductShortName} server always uses the latest version of the labelset files.
The Custom labels list displays the labels.
4. Configuring authentication for the web console
You can configure the web console to require authentication, which is handled by Red Hat Single Sign-On. When enabled, users will be required to authenticate before being granted access to the web console.
It is recommended to complete the following steps to configure authentication for the web console.
-
Enable authentication for the web console.
NoteIf you have installed web console on OpenShift, authentication is already enabled and cannot be disabled. -
Change the administrative user’s credentials.
-
Remove the default web console user.
-
Add web console users.
4.1. Enabling authentication for web console
|
Note
|
If you have installed web console on OpenShift, authentication is already enabled and cannot be disabled. |
Run the following script to require users to log in before accessing the web console. This script configures the Red Hat Single Sign-On login page to require users to authenticate before granting access to the web console.
$ <{ProductShortName}_HOME>/switch_to_authentication_required.sh
|
Note
|
In a Windows environment, use the switch_to_authentication_required.bat script.
|
Now, whenever you start the web console, users will be required to authenticate to access it.
4.2. Changing the administrative user’s credentials
When you enable authentication for the web console, a default administrative user is provided with the username admin
and password password
. You should change this password so that only those that are authorized can make further changes to web console users.
Follow these steps to change the default administrative user’s password.
-
Make sure that the web console is running.
-
Open the Red Hat Single Sign-On administration console.
-
For a
.zip
installation:-
Navigate to
http://localhost:8080/auth/
in a browser. -
Select Administration Console to access the Red Hat Single Sign-On administration console.
-
-
For an OpenShift installation:
-
Navigate to
<OPENSHIFT_URL>/console/project/mta/overview
in a browser.NoteIf you renamed the OpenShift project when deploying, replace mta
with the name of your project. -
Click the link in the SSO HTTPS application and add "/auth" to the end of the URL.
-
Select Administration Console to access the Red Hat Single Sign-On administration console.
-
-
-
Log in with the default credentials of
admin
andpassword
. -
In the upper left corner, select the Master realm from the drop down.
-
In the left-side navigation menu, select Users and then click View all users.
-
From the admin user’s row, click Edit.
-
Select the Credentials tab.
-
Enter the new password in the New Password and Password Confirmation fields.
-
Change the Temporary field to OFF to not require the user to change the password upon next login.
-
Click Reset Password and then click Change password in the popup.
You can also remove this default administrative user completely and create your own administrative users. However, be sure to add the new users before removing the default user.
4.3. Removing the default web console user
A default web console user is provided with the web console with the username mta
and password password
. When you enable authentication for the web console, you should remove this user so that the web console can only be accessed by authorized users.
Follow these steps to remove the default web console user.
-
Make sure that the web console is running.
-
Open the Red Hat Single Sign-On administration console.
-
For a
.zip
installation:-
Navigate to
http://localhost:8080/auth/
in a browser. -
Select Administration Console to access the Red Hat Single Sign-On administration console.
-
-
For an OpenShift installation:
-
Navigate to
<OPENSHIFT_URL>/console/project/mta/overview
in a browser.NoteIf you renamed the OpenShift project when deploying, replace mta
with the name of your project. -
Click the link in the SSO HTTPS application and add "/auth" to the end of the URL.
-
Select Administration Console to access the Red Hat Single Sign-On administration console.
-
-
-
Log in with an administrative user’s credentials. The default credentials are
admin
andpassword
. -
In the upper left corner, select the mta realm from the drop down.
-
From the left-side navigation menu, select Users and then click View all users.
-
From the mta user’s row, click Delete and confirm.
4.4. Adding a web console user
When authentication is enabled for the web console, administrators will need to add users so that they can access the web console.
Follow these steps to add a new web console user.
-
Make sure that the web console is running.
-
Open the Red Hat Single Sign-On administration console.
-
For a
.zip
installation:-
Navigate to
http://localhost:8080/auth/
in a browser. -
Select Administration Console to access the Red Hat Single Sign-On administration console.
-
-
For an OpenShift installation:
-
Navigate to
<OPENSHIFT_URL>/console/project/mta/overview
in a browser.NoteIf you renamed the OpenShift project when deploying, replace mta
with the name of your project. -
Click the link in the SSO HTTPS application and add "/auth" to the end of the URL.
-
Select Administration Console to access the Red Hat Single Sign-On administration console.
-
-
-
Log in with an administrative user’s credentials. The default credentials are
admin
andpassword
. -
In the upper left corner, select the mta realm from the drop down.
-
From the left-side navigation menu, select Users and then click Add user.
-
Enter the Username, First Name, Last Name, and any other required fields and click Save.
-
Once the user has been added, select the Credentials tab.
-
Enter a temporary password in the New Password and Password Confirmation fields, and leave the Temporary field set to ON.
-
Click Reset Password and then click Change password in the confirmation popup.
The user is enabled by default and will be required to set a new password when they log in to the web console with this temporary password.
Revised on 2021-12-06 11:34:11 +0200


% var organizationTypes = ["K-12 Education", "Post-Secondary Education", "Learning Management System", "Academic Administration", "Original Content Author", "Publisher / Product Owner", "Service Provider", "Classroom Instructor", "Other"]; %>


If you have any comments or queries regarding the content on this website, please contact:
If you have any comments or queries regarding the technical aspects of this website, please contact:


{% extends "layout.html" %} {% block page_title %} GOV.UK prototype kit {% endblock %} {% block content %} Digital Marketplace Your account Your Digital Outcomes and Specialists 3 application Company details {% if data['edit3'] == "true" %} {% else %} {% endif %} Are you registered with Companies House? Yes Companies House number Find your 8 digit Companies House number No Enter a number that can be used to identify your business What is this number? For example, 'French Central Exchange Registration number' Return to company details {% endblock %}


Form with max length check
First name
Last name
Address
Apt, suite, etc.
City
Country
Canada
---
Australia
Brazil
Canada
China
France
Germany
India
United Kingdom
United States
Province
Postal code
Phone


A Client for the OpenJUB-API.
| Parameters: |
|
|---|
All possible fields that are availablw to the server.
The /user endpoint.
| Parameters: |
|
|---|---|
| Returns: | JSON-response to the request. |
The /user/:account endpoint.
| Parameters: |
|
|---|---|
| Returns: | JSON-response to the request. |


|
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| PREV LETTER NEXT LETTER | FRAMES NO FRAMES |
JMeshPanel
is storing any edges.
MeshModel
is storing any edges.
ModeTableModel
has selected any
First Modes
.
First Mode
and the Last Mode
are both
storing any currently selected mode selections.
ModeModel
has selected any modes.
First Mode
and the Last Mode
are both
storing any currently selected mode selections.
ModeModel
has selected any modes.
ModeTableModel
has selected any modes.
First Mode
and the Last Mode
are both
storing any modes.
ModeModel
is storing any modes.
First Mode
and the Last Mode
are both
storing any modes.
ModeModel
is storing any modes.
ModeTableModel
is storing any modes.
First Mesh
and the Last Mesh
are both
storing any groups of node subsets.
JMeshPanel
is storing any node subsets.
First Mesh
and the Last Mesh
are both
storing any groups of node subsets.
MeshModel
is storing any node subsets.
First Mesh
and the Last Mesh
are both
storing any nodes.
JMeshPanel
is storing any nodes.
First Mesh
and the Last Mesh
are both
storing any nodes.
MeshModel
is storing any nodes.
JMeshPanel
is storing any quadrilaterals.
MeshModel
is storing any quadrilaterals.
JMeshPanel
is storing any triangles.
MeshModel
is storing any triangles.
Logger
creates a Swing component that displays a running command
history of all logged actions.HistoryPanel
and installs the user interface.
|
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| PREV LETTER NEXT LETTER | FRAMES NO FRAMES |


---
title: Mark Vero
position: PhD student
image: markVero.jpg
email<EMAIL_ADDRESS>office: CAB H 66
website:
cv:
---
About me
I am Mark Vero, a PhD student at the Department of Computer Science, ETH Zürich. I am part of the Secure, Reliable, and Intelligent Systems Lab, supervised by Martin Vechev, since July 2023.
Education
- ETH Zurich, since July 2023
PhD Candidate in Computer Science
- ETH Zurich, 2020 - 2023
Masters in Electrical Engineering and Information Technology
- ETH Zurich, 2017 - 2020
Bachelors in Electrical Engineering and Information Technology
Teaching
- Analysis 1, Autumn 2019, Autumn 2022
- Analysis 2, Spring 2020, Spring 2022
- Analysis 3, Autumn 2020
- Introduction to Electrical Engineering, Spring 2019
- Engineering Mechanics, Autumn 2018
Publications
{% include get-publications.html filter="person" key="Mark Vero" %}


We interrupt your article to bring you this trash
This is an HTML page. It would have been acceptable in 2003. It does have a nice picture, and that is worth noting, but it is suffering from a lack of
⚡⚡⚡ accelerated mobile paginess ⚡⚡⚡!
This is an HTML page. It would have been acceptable in 2003. It does have a nice picture, and that is worth noting, but it is suffering from a lack of
⚡⚡⚡ accelerated mobile paginess ⚡⚡⚡!


The Party (1968) 99m.
Peter Sellers and director Blake Edwards decided to take the Inspector Clouseau concept from their Pink Panther collaborations and run with it in this simple but funny cult comedy. There is no real story, just a series of gags and routines that unfold within the confines of a swanky but dry Hollywood party. Sellers removes the bumptious aspects of Clouseau and keeps the walking one-man-disaster premise for his creation Hrundi V. Bakshi, an Indian actor who finds himself accidentally invited to a producer's party after wreaking havoc on the set of his GUNGA DIN remake (he literally only gets three steps from the front door before things start going wrong). Why Sellers elected to make his character Indian is a bit of a mystery as there is no reason for it in the story other than to make him a complete foreigner amongst the Hollywood set (you can spot the lines that were inserted to give his nationality some 'relevance'). I'd say that Sellers wanted to utilize his gift for mimicry and accents in a way he hadn't tried before, at least not for the length of a feature - for those of us raised on THE GOON SHOW his choice of role comes as no surprise. It may be an odd choice but it works beautifully and we do not question it: if anything, it helps cement the notion in our mind that he and fellow outsider Claudine Longet (playing an aspiring French actress) belong together by the film's end.
Film has many funny gags but slides in a couple of places. Sellers is best when he is on the move and liable to get himself into trouble - when he is seated at a dinner table halfway through the movie the action instead must transfer to a tipsy waiter. Similarly, the slapstick gets more hysterical and less effective when Sellers disappears for much of the movie's final quarter - having characters repeatedly take pratfalls into a swimming pool is just plain lazy. That's not to say the film still can't be enjoyed - it's just that you have to switch gears from watching a Peter Sellers film to watching a 60s time capsule (the finale has go-go dancing, a brightly-painted baby elephant, and a sea of soap bubbles). Film isn't just for Sellers fans - kids will enjoy the gadget-laden house and relate to his child-like reactions to the problems he causes (he tries to hide the evidence or disappear from the scene). The party hosts' house may remind you of the tacky, modernised home in Jacques Tati's MON ONCLE, just as Sellers may remind you of Tati's creation Monsieur Hulot. Regular Edwards composer Henry Mancini provided the music, and yes, pop singer Longet - remember her kitsch-but-cute 'Love is Blue'? - does get to sing in her distinctive, sugary style.
<EMAIL_ADDRESS>Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
The formatting of the review is likely to differ from the original due
to ASCII to HTML conversion.
Related links: index of all rec.arts.movies.reviews reviews


{% extends "base.html" %} {% import "bootstrap/utils.html" as utils %} {% block app_content %}
{{ title }} was generated using Carcass
carcass is a Python package and command line tool to generate python package scaffolding. See documentation for this Python package below.
By using the Endpoints dropdown menu you can select defined routes.


ALL
Just Main
(current)
Show BB news
Show LC news
Main news
Lorem Ipsum is simply dummy text of the printing and typesetting industry.
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News for BB
Lorem Ipsum is simply dummy text of the printing and typesetting industry.
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Before Change
self.opCarving.RawData.connect( op5.output )
// Special connection: WriteSeeds metadata must mirror the raw data
self.opCarving.WriteSeeds.connect( self.opCarving.RawData )
// The GUI monitors all top-level slots to decide when to refresh.
// Hook up these top-level slots so the GUI can find them.
self.Segmentation.connect( self.opCarving.Segmentation )
After Change
assert len(self.RawData) == laneIndex
self.RawData.resize(laneIndex+1)
def removeLane(self, index, final_length):
// Just remove from our input slot, which will propagate to the rest of the internal connections
assert len(self.RawData) == final_length + 1
self.RawData.removeSlot( index, final_length )


io
Each message contains a immutable timestamp.
For example, if you take a picture, the time you take the picture is the message's timestmap.
Accept any type except Null, Nothing and Unit


Around the world, birthdays are celebrated as we mark the end of a year and the start of a new one. Relatives and friends gather to share food and drink, bringing gifts and enjoying a special birthday cake. Because these life events occur only once a year, there is a certain amount of pressure on the host to deliver a memorable event.
Anniversary events celebrate important milestones in a couple's life together, and provide an opportunity for friends and relatives to join in celebrating that milstone. For many couples, the anniversary celebration includes a renewal of vows.
Events in a corporate environment are usually tools to market externally or internally a message proposed by the brand, the company, the boss. The common denominator of corporate events is the use of events as tools to change internal company behavior or external behavior of customers towards the brand, company or products of the company in question.


Before Change
// Add up agreement for frames
if normalizer > 0:
score += np.sum(np.logical_and(ref_rank, est_rank)) / normalizer
num_frames += 1
// Normalize by the number of frames counted.
// If no frames are counted, take the convention 0/0 -> 0
After Change
// (this also holds when the slice goes off the end of the array.)
idx = min(query, window)
ref_score = np.concatenate((ref_score[:idx], ref_score[idx+1:]))
est_score = np.concatenate((est_score[:idx], est_score[idx+1:]))
inversions, normalizer = _compare_frame_rankings(ref_score, est_score,


HOLLOW MAN (2000) / *
Directed by Paul Verhoeven. Screenplay by Andrew W Marlowe from a story by Gary Scott Thompson and Marlowe. Starring Kevin Bacon, Elisabeth Shue, Josh Brolin. Running time: 112 minutes. Rated R for extreme violence and offensive language throughout by the MFCB. Reviewed on August 7th, 2000.
By SHANNON PATRICK SULLIVAN
What would you do if you could turn invisible? The possibilities are virtually limitless. There are the cheap, visceral thrills, such as sneaking into changing rooms and dormitories. There are more noble pursuits, like acting as a genuine force for good in your community. Perhaps you could offer your services to the government as a crack espionage agent. Well, if the makers of "Hollow Man" are to believed, you'd probably take a page from any generic slasher movie of the past twenty-five years and start hunting down your friends in gory, if not particularly imaginative, ways. Uh huh.
Inspired by, though not really similar to, HG Wells' novel "The Invisible Man", "Hollow Man" is about a team of scientists trying to create an invisibility formula (here it's described as "going out of quantum synch" with the universe, but of course that's just the technobabble explanation). The project head is Dr Sebastian Caine (Kevin Bacon), an arrogant genius with more than a slight streak of megalomania. His assistants include ex-girlfriend Linda (Elisabeth Shue) and Matt (Josh Brolin), who are sleeping together behind Sebastian's back.
In fact, the team has already figured out how to make people become invisible -- the problem lies in trying to reverse the effects. In a flash of inspiration one night, Sebastian thinks he figures it out, and indeed their test gorilla Isabelle is successfully made visible again. Without informing his superiors, Sebastian decides to proceed to the next stage of the experiment and test both serums on a human subject: himself.  Soon, the tantalising possibilities invisibility offers become too much for Sebastian, and he begins to succumb to his base desires.
"Hollow Man" falls short in all moviemaking fundamentals: plot, characterisation, atmosphere. Even Paul Verhoeven's directorial flair, striking in "Total Recall" ten years ago, is absent here, as the director continues the downward spiral most recently evident in the tedious "Starship Troopers". I find it appalling that a movie can take such a great, multifaceted concept -- invisibility -- and hogtie itself to a standard old slasher storyline. And "Hollow Man" isn't even a particularly good slasher film, because we're not so much as afforded an interesting death sequence. Sebastian's murderous rampage, when it finally comes, is without tension, excitement, or invention.  There's no effort to create any suspense, or to really shock the viewer; it just feels like the filmmakers are going through the motions, and rather feebly at that.
Personally, I'm more interested in special effects where I can see something, rather than those where I can't. Sure, a good job is done to achieve the appearance (as it were) of invisibility, and I'm sure it took a lot of hard work, but the gosh-wow factor is exhausted pretty quickly. The same goes for the scenes where Sebastian suddenly becomes semi-visible, when he is immersed in water or smoke or whatever. The first such sequence is appealing; the concept gets tired soon thereafter. Indeed, the only effects which really left an impression on me were the scenes where the invisibility formula and its antidote are employed -- first on a gorilla, then on Sebastian. Instead of taking effect all at once, the serums work layer by layer, giving us a view of the inner workings of the bodies like an anatomy textbook brought to life.
Beyond this, there is little to recommend "Hollow Man". Kevin Bacon does a reasonable job in a role in which his voicework is paramount. But Sebastian Caine is a desperately uninteresting character. We are robbed of the chance to investigate whether or not it is invisibility which has affected his mind, because he's clearly on the edge even before the experiment. A far more interesting approach to have taken would have been to give us a less unscrupulous character and really delve into the temptations he experiences.  I realise that "Hollow Man" is, first and foremost, a thriller, and I am not suggesting that it should have been bogged down in ethical posturing. But I think a more clever movie could have balanced its protagonist's inner turmoil with the requisite action scenes.
To make matters worse, the screenplay by Andrew W Marlowe (from a story co-conceived with Gary Scott Thompson) doesn't even come up with interesting things for the invisible Sebastian to do. Indeed, of all the scenes involving Sebastian's abuse of his power, the only one that's at all intriguing is the very first one, where he molests a co-worker (Kim Dickens), with her being only barely aware of it. There is a definite eroticism to this scene, not the least because of the conflict previously established between the two characters. But it's all downhill from there -- we subsequently get another excuse for partial nudity, and then it's slasher time. That such a fantastic premise is so thoroughly wasted is the surest sign of the sheer creative bankruptcy of the movie.
Amongst the supporting cast, Shue and Brolin try gamely to play the heroes, but neither of their characters have much personality to speak of. The film's engagement in a bit of role reversal, casting Shue as the more proactive of the pair, is but a minor triumph. Most of the other characters are simply there to act as cannon fodder, although Dickens and Joey Slotnick make the most of their small roles. No fair guessing who survives and who doesn't, though. In order to surprised on that point, there would have to be some imagination behind the movie. On the set of "Hollow Man", it seems that bodies weren't the only things made to vanish.
Copyright © 2000 Shannon Patrick Sullivan. Archived at The Popcorn Gallery, http://www.physics.mun.ca/~sps/movies/HollowMan.html
_______________________________________________________________________ / Shannon Patrick Sullivan | "We are all in the gutter, but some of us \ |<EMAIL_ADDRESS>| are looking at the stars." - Oscar Wilde | \___________________________|__________________________________________/ | Popcorn Gallery Movie Reviews www.physics.mun.ca/~sps/movies.html | | Doctor Who: A Brief History of Time (Travel) /drwho.html |
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
The formatting of the review is likely to differ from the original due
to ASCII to HTML conversion.
Related links: index of all rec.arts.movies.reviews reviews


Skills
Here are my skills that I’ve worked hard to curate and tone.
Writing
I have extremely strong writing skills. I have a lot of experience in both technical writing and creative writing.
Design
I also have strong design skills. I am proficient using Adobe InDesign, Illustrator, and Photoshop, as well as Microsoft Office products.
Editing/Proofreading
I have a natural affinity for grammar, and a very sharp attention to detail. I’ve taken an in-depth course in grammar and proofreading (Grammar for Professionals).
Communication
After 2020, I have become very proficient in online communication, through email and video meetings specifically. I have experience in both internal and external communication.
Basic Web Development
I have a basic understanding of HTML and CSS programming. For example, I designed and built this website from scratch.
Qualities
Here are my qualities that make me an exceptional technical writer.
- Articulate
- Attention to detail
- Determined and focused
- Great time management
- Organized
- Perform well under pressure
- Work well in a team environment
Experience
Most of my experience comes from classes and internships.
Internship
I am currently working as a technical writing intern with Get Lit! Festival. I have worked on many different technical documents, designing flyers, communicating with authors, and helped facilitate Zoom events.
Instructions
I am currently working on developing instructions for Eastern Washignton University students to use Virtual Labs. This includes research, taking screenshots, writing, and revising the instructions.
Web Development
I designed this website from scratch. I wrote the content, designed the layout, and wrote all of the code (HTML and CSS).
Web Writing
I worked with Eastern Washington University’s Sustainability department to write and design a webpage about Regional Freshwater Sources. This included researching, interviewing experts, writing a recommendation report, and writing and designing the webpage itself. This was an independent project, meaning I did not work with a group of classmates.
More Instructions
I worked with iFixit with a group to write and design repair guides and a troubleshooting page for an HP laptop. This included research, photography, writing, and revising the guides.


Enter matrix rows:
Enter matrix columns:
Create
Next player :
Red
Yellow
Are you sure you want to start a new game?
The %s player won. Do you want to play a new game?
New game


CloudScript
CloudScript was a team project done as our final project for Dev Bootcamp. The final projectTeam lead on a self-directed final project where we chose to build a doctor/patient communication and prescription management app that allows users to video chat or message their doctor in real time while also allowing patients to fill their prescriptions and have it delivered under 90 minutes. We chose to develop this on web and mobile with completely brand new technologies including io.js, AngluarJS, Ionic, Node/Express, MongoDB, Gulp, WebRTC and AWS.


Men do not, as a rule, use postscripts, and it is significant that artists and persons inclined toward the arts are much more given to postscripts than other kinds of men. One might almost say that women correspond by postscript; some of them put the subject of the letter in the postscript, as the scorpion keeps his poison in his tail. I have before me letters from Case 58, with two postscripts, and one extraordinary letter from Case 11, with four postscripts and a sentence written outside the envelope. This is the apogee of superficiality.
W L George, The Intelligence Of Woman (1916)


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BasicTypeFloatingToUnsignedIntOperation Class
Definition at line
985
of
BasicTypeOperation.hpp
Constructors
BasicTypeFloatingToUnsignedIntOperation
(
const
Span& span_,
const
boost::uuids::uuid& sourceModuleId_,
const
std::u32string& name_)
Constructor Details
BasicTypeFloatingToUnsignedIntOperation Constructor
cmajor::symbols::BasicTypeFloatingToUnsignedIntOperation::BasicTypeFloatingToUnsignedIntOperation(
const
Span& span_,
const
boost::uuids::uuid& sourceModuleId_,
const
std::u32string& name_)
Definition at line
430
of
BasicTypeOperation.cpp
:
430
:
431
BasicTypeExplicitConversion
<
BasicTypeFloatingToUnsignedInt
>
(
SymbolType
::
basicTypeFloatingToUnsignedInt
)
432
{
433
}
Declaration at line
988
of
BasicTypeOperation.hpp
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{% extends "theme/default/layout.html" %}
{% block body %}
Unfortunately, the page Page not found
{{request.path}}
could not be found. Your best is either to try the
homepage , try searching , or go and cry in corner (although I don’t recommend the latter).


Web Assembly for Buzzword Haters
Web assembly looks like the next best thing in web technologies. Even though the first release happened fairly recently, namely in early 2017, there were rumors and anticipation long ago. With a quick google searching, I found this HackerNews article, almost 3 years ago, for example.
So what is all the hype about WebAssembly? As with all new(and promising) technologies, there is information overload in the air, I made a compact FAQ to help you get up to speed with this new kid in the town
Without further ado, let’s start:
What is web assembly?
Javascript is not the best choice when you want to do things fast and every pico-second counts(hello parallelism). If you have managed to make a javascript application which is resource hoggy like real-time video editing, let me know:)
WebAssembly’s first motivation was speed, as it promises to achieve a near-native performance of the language the binary is written to.
The binary of what?
As mentioned, javascript is not proud of its extreme performance metrics. But other languages like C++ or Rust, are. Web assembly can load the executable of any of the supported languages and execute it in the browser, with near-native performance. Awesome, right? Would you like to see your favorite game, being played in the browser one day, with whatever pros this might have? This day might be closer than you might think. Of course, that means that the relevant libraries(yes, Unity as well) can be ported to WebAssembly.
For completeness sake, here is the complete list of supported languages.

Quoting the FAQ of the official repository
No! WebAssembly is designed to be a complement to, not a replacement of, JavaScript. While WebAssembly will, over time, allow many languages to be compiled to the Web, JavaScript has an incredible amount of momentum and will remain the single, privileged (as described above) dynamic language of the Web.
Great, can’t wait to use it. Could you please give me an example?
Thank you for being so polite. :)
When will it be released?
I can answer in two words. ALREADY THERE. Please check the roadmap for more information.
What if my browser is not supported?
All the major browsers are supported at this very moment(78.64% of the users at the time of writing this). If you are one of the 22% that is not in the club, I am afraid I have not read something related to this case. You may have to switch browsers.
Oh, I have heard something about Blazor.Net recently and it looks very similar. What’s the case?
Blazor is a recently released framework from Microsoft and allows you to do full stack development with C#, with the precious help of WebAssembly. As Microsoft claims, at the time this article was written, the framework is not ready to be used on production apps, but it looks like a great Node.js competitor.
How will node.js be affected, by the WASM rise?
We cannot be sure at this very moment, but here are my thoughts.
As mentioned in the Blazor point above, it looks like Node.js will start having some serious competition. I don’t mean to say that there are no great web frameworks out there. There are tons of them. But until now, only javascript can be used both at the backend and the frontend of a web application. For reasons that are out of the scope of this article, this is considered a great benefit. And competition can usually make us better.
#Conclusion Thank you for taking the time to read this article. I hope that I provided a clean and clear primer on WebAssembly, that lay the groundwork just fine.
Below are some sites to visit, if you want to enhance your knowledge to this technology


Specifying role: 'start'
makes the page behave as the start page
even though the ID is not start.
user
.

Fry
 This is the start page but the ID is user.

What-If-Machine


Navigate using left/right arrows, page up/page down or space bar.
The notes boxes are scrollable, in case that's not obvious.
HTML elements have intrinsic meaning, separate from their appearance, and this meaning is important.
Using correct, semantic HTML provides the browser - or other rendering device - with important clues about how to deal with your content.
The most frequenty cited use case for this is screen readers (and similar assistive technologies). Screen readers use the structure of your document to help the user navigate the page. For example, a screen reader will generate a list of headings and a list of links on the page and read these out to the user. If you're not using headings correctly (or you're using buttons instead of links), then the user isn't going to get a good feel for what's going on in your app.
Screen readers also allow a user to navigate via regions on a page. Regions are things like
<header>
, <nav>
and <main>
blocks.
Check out Smashing Magazine's webinar with
real life screen reader user, checking out some pages
to get an idea of what the web looks like to a screen reader.
The thing is though, screen readers account for a very small percentage of users. So is it really worth the effort?
Yes, it is. For a couple of reasons.
 You can checkout this news article on the Coles case .
Secondly, if we can justify all the time, frustration, and effort required to get our sites working in IE, then we can definitely justify making our sites accessible. Getting a page to work correctly in IE usually involves making it worse for other users. We add JavaScript polyfills other browsers don't need, and nasty CSS hacks. Making a page accessible makes it better - for other users, but also for developers working on it later.
And, on that note - making our page more accessible, through techniques like using semantic HTML, isn't just about making it better for screen readers. It's about helping all our users. Microsoft has this great chart, showing how accessibilty is important for everyone - not just the people we traditionally think of as disabled.
It's also important to remember that not everyone is accessing your site through a nice laptop, or a high end phone. Making your site accessible - especially through the use of semantic HTML - is going to help users on all these types of devices. Many of these devices will not load your CSS, or may not run your JavaScript, meaning your HTML is all you have to stand on.
And even if you decide that you don't have to worry about any of that - it's still better to use semantic HTML, because browsers add behaviour to elements based on their semantics.
For example, on this page, we have a link, and a button with an onclick handler that navigates to a page. The two things aren't equivalent though. If you hover or focus on the link, you'll get a little pop-up telling you where the link goes. And you can shift+click on the link to open it in a new window.
The button, on the other hand, will always open in the same tab. Furthermore, a button can be clicked using either the enter key or space bar, while a link will only work with the enter key. (If you hit space on the button here, it'll go to the next slide, then navigate to the next page, because slide software).
In an ideal world, we'd be building our apps according to this pyramid. A solid base of HTML, with all the core information and functionality of the site. On top of this, CSS to give your page personality and style, and to enhance usability, where relevant. This is the point where you apply all the stuff from the mock-ups that the designers give you - in the CSS not the HTML.
Small heading
For example, if your app has H2 level headings that look like the normal H2 heading here. Then, on one page, inexplicably, the heading is smaller, like the second heading, but it's still the second-level heading on the page. Chances are, the designer has labelled this as a h3. They are incorrect. Ignore them.
Instead, you should implement it as per the code snippet. It's a h2 element, with a class that changes
its appearance. Same thing if you have links that look like buttons (or vice versa). Semantically,
they're links. Use an <a>
element, and change its appearance using CSS.
Because changing your HTML to accommodate the appearance of the page is how you get table layouts, like this one. And nobody wants that, right? (I recommend clicking the Junior Jam link, if you really hate your eyeballs)
If we continue up this pyramid, you can see that ARIA and JavaScript should play a relatively small role. The ARIA bit probably makes sense by now - if you're using semantic HTML, then you shouldn't need to add aria-roles to most elements. You'll still need some for edge-case stuff, but probably 95% of your HTML won't need it.
But what about JavaScript? According to our pyramid, it should be used sparingly, for enhancements only, not for core functionality. Why is that?
The answer is that JavaScript is expensive. JavaScript bundles are big - they take a lot of time and bandwidth to download. They also take a lot of processing power to render. When Chrome uses up all the RAM on your computer, it's not because of all the HTML it's processing.
This graph is me looking at Twitter for 10 seconds. I was using a late-model MacBook Pro, so the processor had no trouble - as evidenced by all the idle time. But of the time it was working, The vast majority of its efforts went into handling JavaScript.
Unfortunately, the world of Single Page Apps (or SPAs) makes it very difficult to follow this principle. In my opinion, SPAs make for a really great developer experience, but they probably aren't the best experience for users. At least not in all the cases where we use them. There are technologies available to improve the situation a bit - like server-side rendering - but it's probably time that we started questioning whether a SPA is always automatically the best option.
In the meantime though, we can do our best to improve our user experiences by creating solid, semantic HTML bases for our components, using CSS to control the styling, and using JavaScript only where we have to.