Systems: Concepts, Methodologies and Applications Second Edition Brian Wilson Department of Systems and Information Management Lancaster University, UK The result of many years' experience, this book, now extensively revised and updated, emphasizes the application of systems concepts and methodologies that have been developed at Lancaster University. In particular the book is about problem solving and the relationship between theory and practice. Complementary to Systems Thinking, Systems Practice by Peter Checkland (Wiley, 1981), which has become a classic in the field, this book shows how...