Does existing data demonstrate how your similar part will satisfy requirements?

  • Open
  • PMPedia Admin
    Moderator
    2020-06-19 at 11:02 am #1404
    Up
    0
    Down

    Does an assessment of the supplier’s existing, qualified device data demonstrate that the similar device you are considering will satisfy mission requirements?

1 Reply

    PMPedia Admin
    Moderator
    Posts: 29
    2020-06-19 at 11:04 am #1405
    Up
    0
    Down

    Suggestions, Observations and Lessons Learned

    This practice is known as qualification by similarity. If the new part being considered is, for example, manufactured at the same facility by the same staff, using the same materials, processes and test approaches as the qualified part, it is likely to be acceptable for your mission under a similar flight environment. That said, if the part qualified by similarity is a single-point failure, in a single-string application or in a mission-critical application, additional mitigations may be needed to further reduce risk.