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Demand for better tools

The collection of documents retrieved by a query is known as a document set. Along with tools to navigate within a document, we must also provide tools to navigate within a document set. The navigation tools that must be provided are next and previous document. These features will allow a user to traverse a document set going from one document to the next based on the document currently displayed. A good hypertext system should also provide the capability of going through various documents in the set.

Some documents can become very large. It may not be wise to return the entire document especially if the user is reviewing the information to determine if in fact the document is relevant to his needs. Therefore, it is necessary for the system to be able to send only part of a document while the user is determining its importance. Once the user has decided that this document is relevant, at that time, the system can return the most relevant part of best matching user intentions to the user directly.