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How Do You Create a Useful SIPOC?

Six Sigma – iSixSigma Forums General Forums Tools & Templates How Do You Create a Useful SIPOC?

This topic contains 5 replies, has 5 voices, and was last updated by  Erik 2018 5 months, 3 weeks ago.

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  • #237111

    Erik 2018
    Participant

    I have a question/opinion regarding the SIPOC. I see often two types of SIPOCS in practice.

    1) where people just define the main process steps, the inputs for all these steps en outputs for these steps.

    I often regard it as very confusing and hard to understand where each input arrives in the process and where outputs leave the process.

    2) when people do organize it per step they often regard the customer of one step (e.g. step 1) as the supplier of the next step (e.g. step 2).

    In my opinion this is not correct as the one carrying out the process (e.g. step 1) is the supplier of step 2 otherwise you are your own supplier and I think it is more interesting to know where do the inputs come from. Often from the step before and sometimes you need additional input from other processes/suppliers.

    I hope to hear the opinions of others on this topic:).

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    #237144

    Chris Seider
    Participant

    I find the SIPOC is a useful discussion to understand project scope with the team and the project sponsor. It helps define the end point(s).

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    #237154

    Darryl Benson
    Participant

    I use SIPOC to as a tool to help define the scope of the project. I find that it facilitates general discussions about relationships throughout the process. This helps in getting the right people in the room.

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    #237162

    Strayer
    Participant

    SIPOC is about external inputs to and outputs from the process, not about what happens within. Sure, there are suppliers and customers for each step within the process but don’t muddy the waters. What you want to do is set the boundaries for the process of interest, however broad or narrow. What crosses that boundary is what you put in the SIPOC.

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    #237576

    Mike Carnell
    Participant

    @erik2018 There are no particular rules for a lot of these tools particularly tools like a process map, SIPOC, etc. Logically you do what you understand. There is also no statistical jail. If you break someone’s rule it really doesn’t matter (there are some assumptions and rules with tools like t tests, DOE, regression etc. you need to be aware of). What matters is results. You do what makes you effective.

    As far as do you recognize and internal supplier? We did that at Motorola for years and it was mostly people creating some esoteric discussion that made no difference to what we were doing. Bottom line is people work more effectively when they understand how they fit into a process. Knowing where their material comes from and where it goes to and how it is processed helps people understand the value of what they contribute. Do you have to put it on your SIPOC? No. You don’t even need a SIPOC but you do need those people in the process to understand their role.

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    #237590

    Erik 2018
    Participant

    Thanks for all your responses. Indeed, it depends maybe on your aim of making a SIPOC (and luckily no jail if you do it otherwise:)). In our case we have students carrying out a LSS green belt assignment in practice. As they are unfamiliar with the process to improve at the start of their internship, we think it is very useful to have a SIPOC like described before. If later on in the analysis phase they focus on part of the processSIPOC, they can easily find the inputs of that specific phase + the direct suppliersof these inputs. If you have the inputs summarized for alle the process steps, you need to filter them afterwards.

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