OntoStudio is the most widespread commercial modeling environment for the creation and maintenance of ontologies. It distinguishes itself through comprehensive functions in intuitive ontology modeling. OntoStudio also has the ability to import many structures, schemas and models. Among the most important functions are the mapping tool, the graphic rule editor and the integrated test environment. With the mapping tool it is possible to map heterogeneous structures onto each other quickly and intuitively. The graphic rule editor and the integrated test environment assures the quality of the modeling.

With OntoStudio, several editors can provide and extend ontologies at the same time by using the OntoBroker Collaboration server. Queries can be exported as web services and be integrated into any application.

• easy integration of databases and knowledge bases by a graphical mapping tool
• export of queries to the ontology as a web service
• modeling of OWL, RDF(S), RIF, SPARQL and ObjectLogic ontologies with possible transformation between them
• collaborative ontology development with the OntoBroker Collaboration server

The following file formats are supported by OntoStudio:

• OWL
• RDF(S)
• RIF
• ObjectLogic

In addition, OntoStudio can import the following structures:

• UML 2.0
• Database schemas (Oracle, MS-SQL, DB2, MySQL)
• Excel tables
• Outlook E-Mails
• Folder structures of the file system

• OntoBroker: Evaluating ontologies (knowledge bases)
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