POSC Meta Model Specifications Version 2.3 Logical Data Model

SUPERSUB

(Rules) (Express)

This entity defines the subtype/supertype associations between entities. Querying SUB for all instances with a given value of ORIGIN will return all the direct and indirect subtypes of the ORIGIN. Querying ORIGIN for all instances with a given value of SUB will return all the direct and indirect supertypes of SUB. Querying SUPER for a SUB gives all direct supertypes. Querying SUB for a SUPER gives all direct subtypes.


Local rules:

Entity projects as table SUPERSUB.

Referenced in Diagrams:


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