Hello Community! I have a quick question over the mappings from SysML v1.6 to SysML v2.0 concepts. Currently, I’m doing a Master thesis on transition between versions, and for this I’m using a mapping file called ‘Part 2: SysML v1 to SysML v2 Transformation’. For me to transform the concepts, I extracted some features from the selected bdd’s models that are to be transformed. As far as I can see, the mappings are:
Block → PartDefinition
Enumeration → EnumerationDefinition
EnumerationLiteral → EnumerationUsage
Operation → PerformActionUsage
Interface → PortDefinition
Generalization Relationship → Subclassification
Realization Relationship → Dependency
Composition Relationship → ?
Aggregation Relationship → ?
Association Relationship → ?
As you can see, I’m bit lost with the latter 3 relationships and can’t find direct mappings for these concepts. Does anyone perhaps know how to deal with it? Any help would be highly appreciated. Thanks in advance! 
P.S.
Originally I wanted to post a link to the file, but it seems that the words ‘o m g’ or ‘O M G’ are not allowed to be posted, even in the context of a company (lol). Seems a bit weird.