Successful businesses are constantly concerned with understanding their customers needs. That applies equally to the defense industry. Industrys strategic investments in plant, people, equipment, and technology are driven by both actual and anticipated demand for their products. In the case of major Department of Defense contractors, billions of dollars and thousands of jobs can ride on a decision about where to expand or reduce capacity and what technologies and new programs to pursue. The quality of those decisions is directly related to having accurate knowledge and realistic expectations about what DoD will eventually want to buy and when DoD wants to buy it.