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1. The Knowledge Browser provides acces to the classes, parameters, relations and constraints in the knowledgebase. It's the central place for adding and editing knowledge.
2. The ExplanationFrame Viewerwindow provides access to detailed information about a frame (a parameter, a relation or a relationconstraint) in the knowledge base.
3. The Properties window provides even more details on the knowledge makes it possible to provide . It provides information on the way of use by the modeller.
4. The Workbase facilitates solutions and datasets, and provides the control buttons of the modeller.

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Besides the windows a main menu is shown. Items in the main menu are enabled when it is allowed to use the selected item. This will depend on a lot of things such as user level, position in the Knowledge Browser or Workbase, etc. The menu provides access to the standard and Quaestor-specific file handling en handling and edit functionality. Furthermore, the basic handling with respect to the Knowledge Browser and Workbase is facilitated. However, realise that most of the functionality is enabled by right clicking () in either the Knowledge Browser or Workbase. The menu item Tools provides access to advanced options related to repair and debugging of knowledge bases and Quaestor settings.

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• Flash demo of a simple knowledge base with Workbase-Knowledge Browser connection: click here....
• Flash demo showing the difference between Workbase-Knowledge Browser connection switched on and off: click here....
• Flash demo of a Taxonomy knowledge base with Workbase-Knowledge Browser connection: click here....

The Knowledge browser

In Quaestor, the Knowledge Browser provides access to the knowledge assembled in the knowledge base and the functionality of Quaestor. Together with the Workbase the Knowledge Browser is the most significant component of the user interface and offers all the necessary possibilities to adapt search and even combine knowledge databases. Basically, it consists of seven parts (figure 2).

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