PDS

4. A PDS can change

A PDS has to be a written document, but it does not need to be engraved in stone. It can be changed. As a rule, the design follows the PDS. But if the emerging design departs from the PDS for some good reason, the PDS can be revised to accommodate the change. The important thing is to keep the PDS and the design in correspondence throughout the design process. In this way, the PDS ends up specifying not just the design, but the product itself.