Thirty years ago Peter Checkland set out to test whether the Systems Engineering (SE) approach, highly successful in technical problems, could be used by managers coping with the unfolding complexities of organizational life.

The approach to tackling messy real-life situations known as Soft Systems Methodology (SSM) was developed in a 30-year programme of action research led by Peter Checkland. The approach is now used and taught around the world, and its development has been described in depth in four books published between 1981 and 1999, which are now regarded as classics in the field.

Peter Checkland and John Poulter now present a concise, crystal-clear and definitive account of SSM written for anyone who wishes to use, teach, or learn about it. This account also corrects the misunderstandings about the SSM approach, which plague its secondary literature.

Learning for Action first provides an overview of SSM and its use, then gives a detailed account of the techniques used within it. It also crisply summarizes many accounts of SSM in action in real situations in both private and public sectors, using the pattern: the situation; the use of SSM; outcomes, with references given to more detailed accounts.

Also covered are the craft skills which practitioners develop, the theory underlying SSM, and the fundamental shift in thinking away from the systems approaches of the 1960s which its development signalled – namely the transition from 'hard' to 'soft' systems thinking.

After an explanation of the book’s purpose, the authors provide in Part 1 first an overview of SSM as a whole, then a fleshed-out account with just enough detail and advice to enable the reader to set about using the approach in problem situations of concern. Part 2 describes examples of SSM in action and also pays special attention to one of the most common application areas: that of work in the information system/information technology field. A final chapter in part 2 discusses the difficulties some people have in grasping the true nature of SSM, drawing attention to the inadequacies in much of the secondary literature. Appendices provide an outline of the theoretical considerations which underpin SSM, a guide to sources of further information and illustrations of some of SSM’s techniques.