I think there are two test plans required by APQP. The first (DV) validates the design is good (element 23 from the ford Doc) and answers the question "if the parts are made according the design, will it perform in service to the required level" and is done on prototype "nominal" parts. The next testing (PV) confirms the process is delivering the design (element 50 from the ford doc) and answers the question "does the expected process performance deliver the required product performance" and could only be designed with reference to the process and the understood risks.
I'm referencing the Ford doc because I'm currently locked out of AIAG and can't ref their manual.
I'm referencing the Ford doc because I'm currently locked out of AIAG and can't ref their manual.