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Robust Vs Reliable

Six Sigma – iSixSigma Forums Operations Manufacturing Robust Vs Reliable

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  • #54952

    shankar
    Participant

    what are some of the differences and similarities between robustness and reliability?

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    #197837

    Robert Butler
    Participant

    I think you will have to be a little more specific – with respect to what?

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    #197839

    Chris Seider
    Participant

    @rbutler How about robustly reliable? Hope you’re staying relatively warm enough.

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    #198645

    Babu
    Guest

    Reliable is designed and built to function for a period that was committed to the customer in terms of Hours or some unit of time.

    Robustness is the ability to continue to function beyond the period committed until it wears out. This can be Durability.

    Robust means stronger than Reliable, that can be called as Durable.

    s

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    #201677

    Reliability: Something is designed to a certain specifications. If 100 of those items are designed, and 99 work as per the specifications, then the reliability of that item is 99%.
    Meaning it works to its specifications.

    Robust: When the designed product above ends up being used in a ways it is not supposed to, but it still functions well, then it is robust.

    Example: An umbrella is designed to withstand winds of 10 mile an hour speeds without flipping and wetting the user in the rain. If all the umbrellas work as specified at 10 mph, then you have designed a very reliable product.
    Say designer A’s umbrellas all flip at 11mph
    Say designer B’s umbrellas dont flip up to 30mph winds

    Although both designer’s umbrellas are reliable, Designer B’s umbrellas are more robust.

    Hope this helps.

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