A system for indexing metadata, Metadex was designed to provide contextual support for text searching and allow the content management systems then under development to share information effectively.
A US patent was applied before but the dot com crash took the company down before the patent was defended. Advances in text searching, artificial intelligence and XML protocols have rendered redundant the urgency for the system, however indexing metadata is still useful and the attribution of meaning using a dense and well indexed system has powerful applications.
Certainly there is more need than ever to effetively be able to share aggregate and organise content.
The Content Management systems built to realise Metadex, UConstruct and Proton morphed into Open Source projects: Proton lives on today as Joomla, though the metadex was removed under Mambo, and the content sharing hooks were removed in Joomla 1.1.