A Documentation site for Extension Point Framework
Refactoring Framework - Event-B
sapui5 - UI5 Fragment (not view) extension points from standard
Graphical Modeling Framework/Versions/GMF 2.0 - Eclipsepedia
Building share point framework solutions
Introduction to Application Framework
Concepts of Extensibility Configuration Framework
Building share point framework solutions
Powering Up Laravel: How to Extend the Framework for Added Functionality, by Opadaalziede
SharePoint Framework extensions samples - Waldek Mastykarz
Use-Case Model - Javatpoint
Alfresco Docs - Software Architecture