Presents the state of the art in fuzzy control and fuzzy systems, with emphasis on the role of fuzzy sets in control engineering. Provides background to fuzzy sets, the concept of fuzzy control, and fuzzy controllers, with examples of applications. Describes properties and extensions of the fuzzy controller; description, identification, and validation of models; and determination of control algorithms. Also considers the decision process in terms of fuzzy relational equations and solution of problems via fuzzy numbers.