This volume provides the reader with a comprehensive introduction to system specification and design methods, with particular emphasis on structured and formal methods, method integration, concurrency and safety-critical systems. It contains both new material by Michael Hinchey and Jonathan Bowen, along with reprints of classic articles on high-integrity systems which have never before appeared together in a single volume. Among these classic articles are contributions from such leading names as Leslie Lamport, Nancy Leveson, and C.A.R. Hoare. Also included is a Foreword by David Lorge Parnas. High-Integrity System Specification and Design will provide practitioners and researchers convenient access to a range of essential essays - both classic and state-of-the-art - in a single volume. It provides them with details of specification and design approaches for this type of system, an overview of the development process, and evidence of how various classes of high- integrity systems may be approached and developed successfully.