To tackle the complex problems of life today, we need to coordinate a wide range of expertise. Systems concepts and methods offer the means of integrating the contributions of specialists, including managers, scientists and engineers. The book introduces simple yet sound concepts and a language understandable to all concerned. Its methods of process modelling, systems analysis and design complement traditional methods of engineering and management. It demonstrates those methods on problems arising from everyday life, industry, business, quality management and public administration. This introductory book is suitable for managers and professionals, as well as undergraduates on business, engineering, computing and science courses who aspire to become professional problem solvers.