»One of the most significant breakthroughs in the world of management for decades« - is the reaction amongst leading international managers to the Successive Principle. This discipline gives proactive support to management using efficient handling of uncertainty as a central element of the decision process and one of the major areas of unrealised potential. Its many documented advantages includes: (1) Unprecedent reliability of prognoses, estimates, financial analyses, schedules ect., (2) Information on the potential for improvement in order of priority, (3) Improved communication, consensus and teamwork. This handbook for managers present the first comprehensive exposition of the Succesive Principle. It sets out simple procedures, basic theory, examples, case studies and exercises, and draws on the author´s extensive experience. The author and founder of the Successive Principle, Steen Lichtenberg, Litt.D. (Copenhagen), is an internationally recognised authority in the field og management as a pioneer of modern management and project management.