A variation of the DFMEA method has evolved from the application of Functional Safety requirements to the DFMEA process. exida calls this method DDMA – Design Deviation and Mitigation Analysis. DDMA maintains the essential objective of DFMEA to identify potential design issues early in the development and make design changes to add important mitigations. DDMA substitutes information from functional safety engineering process steps thereby replacing work in the DFMEA. When expert knowledge is added to DDMA by using the ARCHxTM tool from exida to support this process, exida calls the method Design Expert Deviation and Mitigation Analysis (DexDMATM).
This paper describes an evolution of the DFMEA process where some traditional items are not required and replaced by new items derived from Functional Safety standards.