The Z notation is a language for expressing mathematical specifications of computing systems. By providing a formal semantics for Z this book justifies the claim that Z is a precise specification language and provides a standard framework for understanding Z specifications. Z is compared with other methods such as VDM and CLEAR and in the final chapter a number of studies in Z style are presented to show that Z can be used in a wide variety of specification tasks. This book will appeal to those who wish to deepen their understanding of the mathematical background of the Z method those who want a concise definition of the language and those interested in the design of specification languages. Language: English