Physical description 
xii,161 pages : illustrations ; 24 cm 
Bibliography 
Includes bibliographical references and index. 
Contents 
Pt. I. Communicating Systems. 1. Introduction. 2. Behaviour of Automata. 3. Sequential Processes and Bisimulation. 4. Concurrent Processes and Reaction. 5. Transitions and Strong Equivalence. 6. Observation Equivalence: Theory. 7. Observation Equivalence: Examples  Pt. II. The [pi]Calculus. 8. What is Mobility? 9. The [pi]Calculus and Reaction. 10. Applications of the [pi]Calculus. 11. Sorts, Objects, and Functions. 12. Commitments and Strong Bisimulation. 13. Observation Equivalence and Examples. 14. Discussion and related work. 
Summary 
In this book Robin Milner introduces a new way of modelling communication. He treats computers and their programs as themselves built from communicating parts, rather than adding communication as an extra level of activity. But the aim of the book is to develop a theory, the [pi]calculus, in which these things can be treated rigorously. The [pi]calculus differs from other models of communicating behaviour mainly in its treatment of mobility. The movement of a piece of data inside a computer program is treated exactly the same as the transfer of a message  or indeed an entire computer program  across the internet. One can also describe networks which reconfigure themselves. 

The calculus is very simple but powerful. Its most prominent notion is that of a name, and it has two important ingredients: the concept of behavioural (or observational) equivalence, and the use of a new theory of types to classify patterns of interactive behaviour. The internet, and its communication protocols fall within the scope of the theory just as much as computer programs, data structures, algorithms and programming languages. This book is the first text book on the subject; it has been longawaited by professionals and will be welcomed by them, and their students. 
Subject 
Digital communications  Mathematical models.


Computer networks  Mathematical models.


Electronic data processing  Mathematical models.

ISBN 
0521643201 (cased) £40.00 

0521658691 (paperback) No price 

0521052165 (paperback) 

0521052164 hardcover 
