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ODEMapster
ODEMapster plugin provides users a Graphical User Interface that allows to create, execute, or query mappings between ontologies and databases. The mappings are expressed in R2O language, which is a mapping language between ontologies and databases featuring fully declarative, DBMS independent, and extensible set of primitive operations. This plugin works with OWL/RDF(S) ontologies and with MySQL or Oracle databases. Multiple R2O mappings per ontology can be created. ODEMapster is the processor in charge of carrying out the exploitation of the mappings defined using R2O, performing both massive and query driven data upgrade.
Ontology engineers perform the ontology population, annotation or aggregation from unstructured information sources activities with various manual or (semi)automatic methods to transform unstructured, semistructured and/or structured data sources into ontology instances. Thus, ODEMapster plays the part where ontology population is performed from structured data sources (RDBMS).