Tracker is a powerful desktop-neutral first class object database,
tag/metadata database, search tool and indexer.
It consists of a common object database that allows entities to have an
almost infinite number of properties, metadata (both embedded/harvested as
well as user definable), a comprehensive database of keywords/tags and
links to other entities.
It provides additional features for file based objects including context
linking and audit trails for a file object.
It has the ability to index, store, harvest metadata. retrieve and search
all types of files and other first class objects