Where used: Object Type And Relation Model


Place


Read First: Relation
Read Next: Place Relation

The meta-relations around Place gather together the four pieces of
information about a relation.  See description of relation and the
meta-relations:

  hasParticipatingType/participatesInRelation

  hasParticipantCardinality/participantCardinalityFor

  hasTupleCardinality/tupleCardinalityFor

  hasRoleType/isRoleTypeFor


Places were chosen to model relations instead of mappings.  See
discussion at Mapping.


The information recorded by place and its meta-relations is can also be
recorded in a place relation.  See discussion about breaking infinite
recursion at Place Relation.



Read First: Relation
Read Next: Place Relation


Hierarchy:

Attributes: None

Operations: None