POSC Meta Model Specifications Version 2.3 | Meta Data Relational Implementation |
SUPERSUB (SUPERSUB) | (DDL) |
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.