Unilexicon is a visual online thesaurus server, classification and taxonomy management software coupled with a web-site tagging tool and record tagging system. A taxonomy manager to extend your search tools for database powered websites, document and knowledge classification. SAS and enterprise semantic metadata management and integration system.
An information management software offering metadata repository and semantic search tools, data integration and records management tools. Simple knowledge organization system (SKOS) for your organisation.
Unilexicon is open source, see the source code or read the documentation.