Systemic Metaphor Analysis for Knowledge Based System Development
One of the key phases in the development of a Knowledge Based System (KBS) is that of knowledge acquisition. All KBSs must go through this stage and it presents a major hurdle to be overcome when building such systems. The focus of attention at this stage of a KBS development is the domain which, in simple terms, is that knowledge needed to solve a set of real world problems. Research on the MEKAS project has indicated that knowledge about a domain not only includes the tasks and objects which it addresses, but also the wider cognitive and real world environment in which it is set (Paton & Nwana, 1990). As such, human knowledge about domains is so complex that without an analysis stage that probes the underlying nature of a real world domain and how experts may conceptualise it, the knowledge that is eventually incorporated into a KBS remains shallow and incomplete. Just as conventional systems development requires a systems analysis phase to analyse the problem situation, so KBS development requires a knowledge analysis phase which characterises the domain by organising the information acquired from a variety of knowledge sources into a coherent and unambiguous whole.
KeywordsKnowledge Acquisition Knowledge Source Underlying Nature Knowledge Analysis Knowledge Base System
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