https://www.w3.org/standards/history/CX/
Component Extension (CX) API requirements Version 1.0 publication history | Standards | W3C
The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web...
api requirements
https://ifttt.com/docs/api_reference
Service API requirements - IFTTT
Learn how to implement an API for your service according to the IFTTT Service Protocol.
service apirequirementsifttt
https://www.w3.org/TR/2010/WD-media-annot-reqs-20100121/
Use Cases and Requirements for Ontology and API for Media Resource 1.0
use casesmedia resourcerequirements
https://api.drupal.org/api/drupal/core%21modules%21system%21tests%21modules%21experimental_module_requirements_test%21experimental_module_requirements_test.install/function/experimental_module_requirements_test_requirements/9
function experimental_module_requirements_test_requirements | Drupal API
functionexperimentalmodulerequirementstest