In my previous posts, I mentioned that the taxonomy is necessary to create navigation to content. If users know what they are looking for, they are going to search. If they don't know what they are looking for, they will look for ways to navigate to content, in other words, browse through content. Taxonomies can also be used as a method of filtering search results so that results are restricted to a selected node on the hierarchy.
Once documents have been classified, users tcan browse the document collection, using an expanding tree-view to represent the taxonomy structure.
When there are many documents involved, creating taxonomy could be time consuming. There are few tools on the market that provide automatic classification. Another use of the automatic classification is to automatically tag content with controlled metadata (also known as Automatic Metadata Tagging) to increase the quality of the search results.
The tools that provide automatic classification are: Autonomy, ClearForest, Documentum, Interwoven, Inxight, Moxomine, Open Text, Oracle, SmartLogic.