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PFMEA detection ratings

Discussion in 'FMEA - Failure Modes and Effects Analysis' started by Steve Lawton, Aug 17, 2016.

  1. Steve Lawton

    Steve Lawton New Member

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    Just a quick question to understand how the rating should take place when taking prevention and detection into account.

    Should the score use the lowest value of the two criteria or use the highest value?

    E.g.

    Prevention
    - Use of visual work instructions;
    - Training;
    - Drawing.

    The rating for prevention element would be circa '5'.

    Detection;
    -Visual

    The rating for detection would be '8' as there is on gauging employed in the process.

    So should the 5 or 8 be used?

    Thanks for your help
     
  2. Ardaqr

    Ardaqr Member

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    I think visual control can't be 5 ever for the detection. Because there has to be also some visual/auditory warning systems to find the defects.
     
  3. Miner

    Miner Moderator Staff Member

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    Preventive controls will impact the Occurrence rating, while detection controls impact the Detection rating.
     
  4. luisdiaz980

    luisdiaz980 New Member

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    Preventive actions will decrease the occurrence; so the most effective preventive actions get lower occurrences and decrease the occurrence rating

    The most effective Detection actions ease the detection of failures and decrease the detection rating
     

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