The number of defects that engineers found in their programs was sharply reduced by the PSP course. For the 104 engineers, average total defects were reduced by 58 percent, average compile defects were cut by 83 percent, and average test defects were 72 percent lower. Schedule and quality performance data on six projects at Advanced Information Services are provided in Tables 1 and 2. Develop an introduction plan and strategy. Management reviews the costs and benefits of PSP and publicly supports the introduction plan.
Training is provided to the project team, and the supervisor is trained along with the team.
Management views the PSP course and exercises as part of the job and tracks progress with the same priority as a development project. Following training, the PSP methods are immediately applied to a project. Directly involved line managers are familiar with and support the PSP strategy and have been trained in how to manage PSP-trained engineers. With qualified instructors, training takes about 125 hours per engineer. Engineers should be encouraged to complete the full PSP course in order to acquire the personal data needed to convince themselves of the benefits of the PSP methods.