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Re-evaluating & comparing two designs


After the initial DFX analysis of a certain MBOM, different activities within the different disciplines (e.g. purchase, design) might have resulted in a proposed re-design of the product. It is thus a logical step to compare the “DFA index” for the original MBOM with the new re-designed one.

Re-evaluating new design

    As per methodology


    COMPARING DFA SCORES


    When comparing two designs it is noticeably that an improved design might have a lower DFA score than the original design. This is because eliminating a part will reduce the total score, making it difficult to compare designs using the DFA-score (Aggregated score) itself. 

    When comparing two designs, you can:

      Use the %-score (Agg Score %)

      Use the theoretical DFA-time
        Each DFX aspect generates a time based on a theoretical optimal assembly. Thus, comparing two designs where the new design has a lower DFA score it will also have a lower DFA time since it conatins less parts

        Compare the total number of parts. 
          Less parts will be a simpler (better) design

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