'Safety-Critical Systems: Problems, Process and Practice' contains the papers presented at the seventeenth annual Safety-critical Systems Symposium, held at Brighton, UK, in February 2009. The Symposium is for engineers, managers and academics in the field of system safety, across all industry sectors, so the papers making up this volume offer a wide-ranging coverage of current safety topics, and a blend of academic research and industrial experience. They include both recent developments in the field and discussion of open issues that will shape future progress. The first paper reflects a tutorial - on Hazard Analysis - held on the first day of the Symposium. The subsequent 14 papers are presented under the headings of the Symposium's sessions: the Economics of Safety, Transport Safety, Safety in Society, New Challenges, Safety Assessment and Safety Standards. The book will be of interest to both academics and practitioners working in the safety-critical systems arena.