摘要 : The KVAT knowledge validation tool, which tests core knowledge bases (CKBs) using cases, is discussed. KVAT relieves experts and knowledge engineers from manually validating the CKBs in a prototype knowledge-base system (KBS). KVA... 展开 The KVAT knowledge validation tool, which tests core knowledge bases (CKBs) using cases, is discussed. KVAT relieves experts and knowledge engineers from manually validating the CKBs in a prototype knowledge-base system (KBS). KVAT addresses some of the most central problems met when KBSs are validated: what to validate, what to validate with, what to validate against, when to validate, and how to validate. A help desk prototype developed using KVAT is described to illustrate how the tool works. The authors have found KVAT's strengths to be a high level of abstraction, user friendliness, and generality. 收起