When we specialize an archetype, we must keep in mind some rules as: - a specialised archetype can only further narrow existing constraints in the parent (but it may add its own) - constraints are inherited, and can be overridden - overrides are ?covariant?, i.e. the constraints are narrower than the parent, also can be thought of as ?subsumed? - new constraints can be added where allowed by the parent archetype and reference model
Using Archetype Editor I noted some strange behaviours, and I don't understand if they are bugs or a my misunderstanding of specs: 1) I can modify an inherited constraint (changing the text on term_definitions, the occurrences or the cardinality) without specialize the constraint (the archetype node id is the same of the parent archetype).. I thought we should specialize a constraint to modify it! 2) when we specialize a cluster with max occurrences > 1, a new constraint is created and all children are deleted (why?) 3) can we delete an inherited constraint? if this is an Element we can do it with Archetype Editor, specializing it and the deleting it. This is not possible for Cluster Many thanks in advance for any comments. Best regards, leo
