A description is given of the process and content of a major decision analysis performed for a Xerox corporate task force. The decision, which crossed many traditional organizational boundaries, concerned whether new manufacturing facilities should be constructed to produce consumables for a new Xerox product; and if so, when. This study focuses on the process by which we were able to use decision analysis to resolve the many conflicting issues surrounding the problem. The mathematical model constructed for the decision analysis was the key element in accomplishing these tasks, and several of the component models are described in some detail.