Project management involves decision making, and for most projects the ability to make good decisions is crucial to their success. In practice, many project management decisions are based purely on experience and judgement not always successfully. Effective decision making requires an understanding of available alternatives, appropriate methods for deriving choices, and the ability to continually evaluate and select the best means for enhancing project success. The book presents a model for decision making in projects. It distinguishes between authorization, selection, and plan decisions, and presents an overview of available techniques. In addition, the book presents research results to support methods for optimal decisions in projects in order to achieve success. Asbjorn Rolstadas is Vice Dean for research at the Faculty of Engineering Science and Technology and Professor of Production and Quality Engineering at the Norwegian University of Science and Technology. He is the author of