Towards iStar metamodel with extension mechanisms

This is a preliminary version of the iStar metamodel with extensions mechanisms. It consists of the entities of SD diagram with the representation of extensions mechanisms of stereotypes, Tagged Values, Constraints and Groupers. The metaclasses Stereotype and TaggedValue were associated with Element propa-gating these properties to all iStar nodes and links. We created an enumeration related to default tagged values (Id, Reference to, Status and Logic). The iStar groupers and iStar OCL constraints are represented as properties applied to SD diagram.
It is part of the paper Gonçalves, E., Araújo, J.,Castro, J. Towards Extension Mechanisms in iStar 2.0, 11th International iStar Workshop, 2018. (Submitted)

Download this metamodel in ecore here