Address extending existing UML «ExtendedComposite» relationship guidelines in order to cover interface & signal classes in addition to object classes. This can be done within or between UML models.
Table of Contents
Extended composition in UML (including object classes and interfaces)
Also look at the 2021-08-13 IISOMI Meeting Minutes on the discussion of how to display Association information using Gendoc
Agreement: Extended composition should also be available for Interfaces and Signals.
Question: Can one extension class (Class, Interface, Signal) extend more than one base class (Class, Interface, Signal)? → Yes
Italo Busi To verify and confirm that an "Extended composition" can also be used with Interfaces and Signals.