Have you read a book from beginning to end and then realized that none of the ideas in the book can be directly used in the real world? This may be acceptable in some fields, but not in the area of expert systems, which is inherently practical. You cannot really understand what expert systems are unless you have implemented one. In writing this book we have tried to ensure that readers get practical knowledge, which will help them not only to understand expert systems technology, but also to implement expert systems. We have been teaching courses on expert systems for many years. We have...