The principal intent of PSP design templates is to record the design, not to aid you in producing that design. The templates precisely define what the program is to do and how it is to be implemented.Your choice of design method is particularly important because design is an intellectual process and it is hard to do good intellectual work in a language or with methods with which you are not fluent. There fore, atleast until you have used these templates for a while and are familiar with them, continue producing designs as you have in the past but record them on the templates.By completing the templates, you may also find that they help you to produce the design.The PSP2.1 exit criteria for the design phase calls for the completed templates.
The PSP design templates were made as generic as possible so they could be used with any design method. If your design method already produces the information required by one or more of the templates, you need not bother duplicating that material.Before deciding to omit one or more of these templates, however, ensure that your design method captures all of the required information in the detail specified by the templates.