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Identical words

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  • #34706

    Quainoo
    Member

    Hi,
    Is it correct to say that the 3 words mentionned below refer to exactly the same thing ?
    X’s
    KPIV (Key Process Input Variable)
    Factor
    Thanks
    Vincent
     
     
     
     

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    #96006

    Rog
    Member

    Hi Vincent,
    ‘x’ refers to all inputs that directly affect your process. They are not necessarily variable and are not necessarily key. In the early stages of a project you probably will disregard any in-variables.
    KPIV (key Process Input Variable) is not only a variable ‘x’ but is a significant one for your process….so it is different.
    ‘factors’ I would personally consider to be variables from outside of the process. i.e. your process may operate under ambient conditions and was designed to do so. However in extremes of climate it may function differently. Climate is therefore a ‘factor’ but it is not a process variable as it is not designed to be used to control the process.
    I know some of those differences are very subtle especially between an ‘x’ and a factor and you could probably interchange those two terms without confusing anyone. A KPIV however is definitely a special case ‘x’ and should be retained for use in identifying those process variables that are key to the operation of your process (and will probably appear on control plans).
    Rog
     
     

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    #96296

    Kim Niles
    Participant

    Vincent:
    Context based questions always peak my interest … .
    My answer to your question is “yes” when the context surrounding the sentence supports it and “no” when it doesn’t.  The word “Factor” for example could be referring to a control factor or a response factor … big difference. 
    Does that make sense?
    KN – http://KimNiles.com

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