Written as a result of a several-year research project using Computational Intelligence techniques for solving condition monitoring and diagnosis problems of machineries at the Norwegian University of Science and Technology, this book is about intelligent system development. In order to survive in an uncertain and complex environment, it is necessary to bring Artificial Neural Networks, Fuzzy Logic Systems, Genetic Algorithms and Expert systems together to make a condition monitoring and diagnosis system more effective, reliable, and cost effective than the traditional one. The focus of Intelligent Condition Monitoring and Diagnosis System is on practical applications of intelligent techniques. It provides practicing engineers and scientists with the information they need to solve the problems in both industry and academia.