These approaches create an ontology model from a relational
database model and migrates the contents of the database to the
generated ontology. The mappings here are simply the
correspondences between each created ontological component
(concept, property, etc.) and its original database component
(table, column, etc.). In these approaches, the database model and
the generated ontology are very similar. Mappings are quite direct
and complex mapping situations do not usually appear. The
creation of ontology structure may be straightforward, involving
direct transformations of database tables to ontology concepts and
columns into properties.
These approaches create an ontology model from a relationaldatabase model and migrates the contents of the database to thegenerated ontology. The mappings here are simply thecorrespondences between each created ontological component(concept, property, etc.) and its original database component(table, column, etc.). In these approaches, the database model andthe generated ontology are very similar. Mappings are quite directand complex mapping situations do not usually appear. Thecreation of ontology structure may be straightforward, involvingdirect transformations of database tables to ontology concepts andcolumns into properties.
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