Document (#29255)

Author

Speel, P.-H.
Schreiber, G.
Van Joolingen, W.
Van Heijst, G.
Beijer, G.

Title

Conceptual modeling for knowledge-based systems

Source

Encyclopedia of library and information science. Vol.71, [=Suppl.34]

Imprint

New York : Dekker

Year

2002

Pages

S.16-42

Abstract

In this article, we presented knowledge-based system (KBS) development as a specific way of software engineering. What makes conceptual modeling for KBSs unique? STRENGTHS Knowledge-based system development is a very complex process. The approach in this article to clearly separate conceptual modeling from software implementation, which makes the process of KBS development feasible and manageable in a business environment. In addition, the knowledge model resulting from conceptual modeling is a deliverable in itself. For example, in knowledge management, knowledge mapping is a popular area in which graphical, high-level, business-focused knowledge models are delivered. Another strength is the ease of maintenance. Separating models and program code makes the process of updating more flexible. Last but not least, methodological approaches to KBS development have been matured, which provide a professional basis. Knowledge engineers start working in a similar way, and as a result exchange of work is possible and project planning is better manageable. WEAKNESSES The separation of conceptual modeling and KBS software implementation will take more time initially. However, reuse of models and code may speed up the separate processes considerably. In addition, the separate phases need different expertise; knowledge engineers with specific analytical skills should be assigned to conceptual modeling, whereas software engineers with specific programming skills should be assigned to software implementation. Finally, the various methodological approaches lack mature support tools. OPPORTUNITIES Reuse of various knowledge models as well as program code may bring several advantages, in improved quality of the KBSs as well as in speed to market. Separate development of conceptual vocabularies (also called dictionaries or ontologies), corporate memories, and generic domain models in an explicit form may form the basis of effective management of business-critical knowledge domains, which leads to sustainable competitive advantage.

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5. Meij, E.; Trieschnigg, D.; Rijke, M. de; Kraaij, W.: Conceptual language models for domain-specific retrieval (2010) 0.21

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