1)   SemanticWorks 2008
Altova SemanticWorks 2008 is the ground-breaking visual RDF/OWL editor. Visually design Semantic Web instance docs, vocabularies, and ontologies then output them in RDF/XML or N-triples. It is the sensible way to put the Semantic Web to work for you.

 2)   Altova Professional XML Suite 2006
The Altova Professional XML Suite is a comprehensive XML development toolset that delivers tremendous functionality at a special price. It includes Professional Editions of XMLSpy, MapForce, StyleVision, and SchemaAgent, plus the new SemanticWorks.