Planning and management is increasingly problematic in the real-world environment of spiralling change and uncertainty. Knowledge is incomplete, values are in dispute and the decisions of others are often unpredictable. Problem structuring methods (PSMs) are now widely accepted within Operational Research and the systems movement, and have generated an impressive record of high-profile applications. This new edition provides easier access to PSMs. Each of five methods is presented from both a theoretical and a practical perspective. The justification for each approach is explained, and an illustration of applying each method is given in a practical case study. New topics in line with the many advances in the field of problem structuring methods are explored and multimethodology is introduced for the first time. This book does not peddle methods for optimum solutions, but instead shows you how to facilitate an enriched and fluid decision-making process. Participatory methods are explained to assist the formulation and re-formulation of problem solving in an uncertain world. Offering contributions from leading thinkers in the field and building on the success of the first edition, this theoretical guide and practical source will prove invaluable to students of management, systems and OR and to practitioners negotiating real-life problems in today's complex, conflicting and uncertain business climate.