The namespace name http://www.w3.org/2007/OWL/testOntology is intended for use with the OWL 2 Test Cases.
More data to follow....
Warning: Until the specification reaches W3C Candidate Recommendation (CR) status, this namespace name may be reused by any update in such a way as to cause documents written using the namespace to become invalid or to change in meaning. In fact, the namespace may be un-defined, if (for instance) this OWL XML namespace and the OWL RDF namespace are merged.
This document is intended to comply with W3C policy for XML namespace names.