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ESTA for WEB

an Easy-to-Use Expert System Shell

PDC's expert system shell, ESTA, is a great stand-alone environment for constructing advisory and decision support systems. Building advanced knowledge bases  with ESTA is easy and requires no previous programming experience, and it is suitable for many problem domains.(ESTA is included with full source in Visual Prolog).

You can use ESTA to build advisory systems that ensure:
Accessibility of knowledge
Delegation of decision competence
Secure and homogeneous decision making
Preservation of valuable knowledge
Fast and easy information retrieval
Easy and cost effective document maintenance
Relief for overworked employees

And, you can easily interface ESTA to 3rd-party applications like spreadsheets, databases, word processors etc. via the built-in DDE-interface. ESTA includes an interface to Visual Prolog, which means that you can go beyond the built-in functionality - you can build your own extensions to ESTA or integrate ESTA into an existing Visual Prolog application. ESTA is a great prototyping tool in addition to advisory systems,. A knowledge base in ESTA has a hierarchical structure from which a tree display is automatically drawn. You can edit or expand your knowledge base directly from the tree. In this way you can easily get an overview of your knowledge.

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