ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

ATLAS and Common ATLAS Test Languages

Updated on January 9, 2018
tamarawilhite profile image

Tamara Wilhite is a technical writer, industrial engineer, mother of two, and a published sci-fi and horror author.

What are the ATLAS and CATLAS Languages?

The ATLAS test language was originally developed for aviation and avionics unit testing. The ATLAS test language became common because it was not proprietary and designed by IEEE consensus to be universal across all brands of test equipment.

The ATLAS and later C/ATLAS language has been used to write Test Program Sets to test equipment called Units Under Test (UUT).

ATLAS and C/ATLAS are software languages created to develop generic test sets that work on any test set.
ATLAS and C/ATLAS are software languages created to develop generic test sets that work on any test set. | Source

History of the ATLAS Language Standard

The IEEE first created standard 416 for the ATLAS test language in 1976. The ATLAS test language was created to be independent of any specific brand of test equipment. IEEE Standard 771 was the first IEEE standard on how to use the ATLAS language. IEEE Standard 416, last updated in 1984, has been withdrawn. It was replaced with the Common ALTAS or C/ATLAS test language in Standard 716.

Also called ATLAS C, the C/ATLAS test language was created to combine C/ATLAS Test Language and syntax into a single programming language for use on unit testing on automated test equipment. IEEE Standard 716 for C/ATLAS was updated in 1989. The 1995 standard was reaffirmed in the year 2000.

Overview of the ATLAS and C/ATLAS Programming Structure

An ATLAS and C/ATLAS test specification defines the test requirements for the UUT or units under test. The C/ATLAS test specification calls out the resources required to perform the test, though the resources such as memory can be called out implicitly or explicitly.


ATLAS program test specifications must include structure delimiter statements, preamble statements and procedural statements. The preamble statement includes the resource requirements of the test specification.

Procedural statements can address data processing, input-output, control, signal, timing and macros. Data processing procedural statements define the calculations, conversions and storage of data generated during the test. Input/output procedural statements cover input/output functions. Control procedural statements determine when the code for a test specification is run or the sequence of events to be followed. Signal procedural statements determine the measurement of signals generated during testing.


An ATLAS test specification structure refers to a single document or group of documents that record a task to be applied to the unit under test in order to meet a test specification, procedure or program. An ATLAS test specification structure must contain at least one ATLAS program structure. There is no limit on how many ATLAS module structures or non-ATLAS module structures it has.


ATLAS and non-ATLAS modules are separate from the atlas program structure and are linked to the program structure by "include" statements. In this regard, ATLAS and C/ATLAS are a precursor to code libraries and object oriented code, where code modules could be used and reused by different programs.

Non-ATLAS references are called when a LEAVE ATLAS statement is used. The command RESUME ATLAS is used after the non-ATLAS code is run to continue the ATLAS test program.


Each C/ATLAS program structure has a begin program statement that marks when the structure starts. Atlas program structures start with a "begin" statement. C/ATLAS program structures must have a program preamble, a commence main procedure statement, a main procedural structure and a terminate program statement. The program preamble structure starts after the "begin" statement. The preamble structure creates labels and defines attributes used later in the code.

The C/ATLAS commence main procedure statement delimits the start of the main procedure in the test specification program. The main procedural structure is essentially the sequence of events and data collection used to run the test against the specification to be verified by the program. The terminate program statement marks when the program will stop. The last statement in a C/ATLAS program structure should be a terminate statement.


C/ATLAS module structures have a begin module statement, module preamble structure and terminate module statement. Each module within the C/ATLAS test specification structure must have a unique name. The begin module statement marks the start of the module structure. The "Begin" statement is only used once in an ATLAS module structure. Module preamble structures do not contain test specification executable code. Module preamble structures describe the module, its relationship to the test specification and references to the program preamble structure. The terminate module statement marks the end of the module. It is literally the statement "terminate".


The C/ATLAS programming language also allows for blocks to be used. Blocks are used within the procedural specification. Blocks can be set up in hierarchical structures with multiple levels. Blocks are started with a begin block statement and terminated with an end block statement.

Statement numbers within a code block can only refer to other statements inside the block statement. Block bodies do not have to have a local preamble similar to the module preamble. The labels declared for a block carry down to any nested blocks.

Comments

Submit a Comment

No comments yet.

working

This website uses cookies

As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://hubpages.com/privacy-policy#gdpr

Show Details
Necessary
HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
LoginThis is necessary to sign in to the HubPages Service.
Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
AkismetThis is used to detect comment spam. (Privacy Policy)
HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
Features
Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
MavenThis supports the Maven widget and search functionality. (Privacy Policy)
Marketing
Google AdSenseThis is an ad network. (Privacy Policy)
Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
Index ExchangeThis is an ad network. (Privacy Policy)
SovrnThis is an ad network. (Privacy Policy)
Facebook AdsThis is an ad network. (Privacy Policy)
Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
AppNexusThis is an ad network. (Privacy Policy)
OpenxThis is an ad network. (Privacy Policy)
Rubicon ProjectThis is an ad network. (Privacy Policy)
TripleLiftThis is an ad network. (Privacy Policy)
Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
Statistics
Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
ClickscoThis is a data management platform studying reader behavior (Privacy Policy)