Systems Modelling: Theory and Practice brings together some of the leading minds in the fields of Systems Modelling and Operational Research, to produce a book which addresses issues that are of both practical importance and theoretical significance. This union of the theory and practice of Systems Modelling incorporates both ‘hard’ and ‘soft’ aspects of Operational Research, creating a complementary approach that requires more than common sense and results in significant organizational benefits. The contributors are from organizations and academic departments that are major users of systems modelling, meaning their experience will be vital to readers who are seeking to expand their level of understanding in the development of these models. This book will appeal to students of computing, management science and operational research, and to practitioners who understand the many possibilities and applications that this complementary approach could have in industry.