MSA Test Question

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    Need some advice on MSA issue…want to do an MSA on an event that cannot be replicated.  Situation is…cycle time of operators inputting into a system, but cannot delete that input….so I unable to create 5 “mock” events to do an MSA.  Any suggestions….other than my other thought of possibly video taping 5 events…and watching them for the MSA. 



    We used videotaping of a line operator performing an operation, and used this to effectively test gage repeatability.  Especially, it tested the operational definition of start time and stop time for the cycle.
    Another approach is to create a mock system that responds like the real one.  But then the “repeatability” variation is still made up of measurement variation and short-term process variation.  Fact is, cycle time of a process is inherently a “destructive” measure.  You can still have two or more people measure the event and get reproducibility.

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