Flash News: Metamodels using the Metamodel architecture context cannot be edited in Papyrus 2021-09

Metamodels which have been created by using the Metamodel architecture context in the Papyrus New Model Wizard cannot be edited in Papyrus 2021-09 (v5.2).

The solution is to switch the architecture context for the metamodel to “Software Engineering/UML”. This is done by selecting the top node of the metamodel in the Model Explorer and in the context menu select “Switch Architecture Context” and in the resulting popup-dialog select “Software Engineering/UML”.

To create a new metamodel in Papyrus 2021-09 using one of the metamodel templates provided by MetaModelAgent:

1. Invoke the New Model Wizard as described in the metamodeling manual.
2. Select the “MetaModelAgent/Metamodel” architecture context and the preferred metamodel template.
3. Do not check the “Class Diagram” representation kind checkbox.
4. After the metamodel has been created, follow the steps above to switch the architecture context to “Software Engineering/UML”.

MetaModelAgent does not currently care if a metamodel is based on the metamodel arctitecture context or the UML architecture context.