The zone filter in the Verity search engine extracts zones and fields in documents so that they can be searched. The collection administrator defines the zones and fields that are extracted.
Zones are specific regions of a document to which searches can be limited.
Using the zone filter, the Verity search engine builds zone information into the collection s full-word index, which allows quick and efficient searches over zones. This includes both SGML and HTML . Internet Message Format documents. This includes standard email and Usenet news messages. Fields are extracted from the document and stored in the collection for retrieval and searching, and can be returned on a results list.