1 Introduction -- 1.1 Defining Terms -- 1.2 The Role of Evaluation -- 1.3 Purpose of Book -- 2 Overview: Development Models, Evaluation Dimensions, and Evaluation Models -- 2.1 Life Cycle Development Models -- 2.2 Evaluation Dimensions, Criteria, and Attributes -- 2.3 Knowledge-Based System Evaluation Models -- 2.4 Chapter Summary -- 3 Framework for Evaluating Knowledge-Based Systems -- 3.1 Evaluation Issues -- 3.2 Generic Development Stages -- 3.3 Sources of Evaluation Data -- 3.4 Types of Evaluations -- 3.5 Evaluation Constraints -- 3.6 Chapter Summary -- 4 Requirements Validation -- 4.1 Requirements Validation Framework and Issues -- 4.2 Requirements Validation Methods -- 4.3 Method Applicability -- 4.4 Summary -- 5 Knowledge Base Validation -- 5.1 Conceptual Issues and Terms -- 5.2 Knowledge Base Validation Methods -- 5.3 When to Examine the Knowledge Base and Use Test Cases -- 5.4 Chapter Summary -- 6 Knowledge Base Verification -- 6.1 Operationalizing KB Verification -- 6.2 Verification Methods -- 6.3 Knowledge Base Management -- 6.4 Supporting Tools -- 6.5 Organizational Use -- 6.6 Recommendations -- 6.7 Conclusions: Good Versus Bad Practice -- 7 Usability Evaluation -- 7.1 Usability Engineering and Evaluation: Two Perspectives -- 7.2 Expert Evaluation Methods -- 7.3 Subjective Evaluation Methods -- 7.4 Empirical Evaluation Methods -- 7.5 Relative Effectiveness of Usability Evaluation Methods -- 7.6 Chapter Summary -- 8 Performance Evaluation -- 8.1 Conceptual Issues -- 8.2 Performance Evaluation Methods -- 8.3 When to Use Different Performance Evaluation Methods -- 9 Planning and Managing Knowledge-Based System Evaluations -- 9.1 Steps in Planning and Managing the Evaluations -- 9.2 Implementing Life Cycle Evaluations: Problems and Solutions -- 9.3 Recommendations and Conclusion -- References -- Author Index.