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Collage of five types of database models
Collage of five types of database models
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Example of an IDEF1X entity–relationship diagrams used to model IDEF1X itself. The name of the view is mm. The domain hierarchy and constraints are al
Example of an IDEF1X entity–relationship diagrams used to model IDEF1X itself. The name of the view is mm. The domain hierarchy and constraints are also given. The constraints are expressed as sentences in the formal theory of the meta model.
Example of a Generic data model.
Example of a Generic data model.
Semantic data models.
Semantic data models.