![]() ![]() BackgroundĬommercial Data Modeling tools have be around for more than two decades. ![]() ![]() The Configurable Ontology to Data model Transformation ( CODT) enables the user to initialize transformation options. The model transformation of this mapping requires user configuration and a holistic, metadata-set based approach rather than conventional parsing of RDF/OWL files. I propose that the Associative Entity, rather than a mere relationship is the correct mapping of object properties. This article examines where the ontology object property to LDM relationship transformation fails for unconstrained cardinalities in the Open World ontology, ternary and higher relations, and critical RDF-S/OWL definitions for sub – and inverse object properties. The Association or Associative entity is appropriate the design pattern to capture semantics within the limits of the Entity-Relationship Diagrams. Ontology-derived Conceptual Data Models are Semantic Models by their origin. The Semantic Data Model emphases the common relations between entities. Academic papers, commercial tools, and education map ontology class to logical data model (LDM) entity, data property to attribute, and erroneously object property to the relationship. Model transformations depend on a mapping of meta-model elements of the source to elements of the target model. ![]()
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