3. ontografProtege Desktop plug-in that allows visual, interactive navigation of the relationships in OWL ontologies.
4. swrltab-pluginProtégé 5 plugin for working with the SWRL rule and SQWRL query languages
5. mapping-masterLibrary that supports the Mapping Master DSL for mapping spreadsheets to OWL ontologies
6. code-generationGenerate Java code from an OWL ontology from within the Protege Desktop editing environment.