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Using QFD for software requirements development

Six Sigma – iSixSigma Forums Old Forums Software/IT Using QFD for software requirements development

Viewing 18 posts - 1 through 18 (of 18 total)
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  • #25920

    Fontanilla
    Participant

    Has anyone had success using QFD to cascade business requirements into coding.  If so, what were your QFD phases (i.e. product, part, manufacturing)?

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    #62957

    Tomi
    Member

    We are trying to go that route in my organization as well.  I am interested in hearing the approaches and pro and cons of doing this

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    #63039

    Vikas M. Valsang
    Member

    We have been using QFD tool right after Requirements upto Implementation. Though all houses of the QFD are not used, we have seen tremendous benefits in terms of addressing non functional requirements.
     

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    #63055

    K. Uma Balasubramanian
    Participant

    Can you kindly provide us a sample QFD (as I am interested in non Functional requirements too)

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    #63056

    Vikas M. Valsang
    Member

    We have used QFD to translate customer needs to how’s. One of the CTQ has been the response time for a particular operation (call setup). The response time for was fixed between 0.1 – 0.5 seconds.
    This need was translated to check all the how’s (implementable modules) impacting the response time. Correlation room was used to check if any of the modules had any interaction (positive / negative).
    Based on this, each module (how) were set with target specification limit to ensure the overall CTQ of 0.1 – 0.5 seconds were met.
    So right from QFD – Level 1 (Requirements phase) to QFD – Level 4 (Implementation), this non-functional requirement was traceable. In this process, some changes were required to ensure query to a database as a critical factor (identified only during design). This resulted in changes in the structure or organization of the database to improve the query time.
     

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    #63072

    Mannu Thareja
    Participant

    Hi Dan,
    I have succesfully used QFD in the ANALYSE phase for two Six-Sigma projects:
    1. Improving the Execution effieciency for the Fixed Price projects. (A great success, we were able to save around 30% of the total project effort)
    2.  Improving the review process of the Technical Specification/ Design Phase, thereby increasing the phase containment.
    If u need more information, pls post ur mail ID here.
    Regards,
    Mannu
    PS: If i remember correctly, are u the one who’s article on QFD is posted at iSixSigma?

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    #63073

    John McDonough
    Participant

    QFD is a tool, just like a hammer.  And like a hammer, it can be put to many uses.
    I’ve used QFD on many software projects over the years.  Primarily, I’ve used it to rank requirements against business needs.  It can be very difficult for an I/S shop in a corporation to direct its efforts squarely against the bottom line.  Partners often have their own agendas which can be difficult to discern when viewed through I/S eyes.  QFD can help explore the real needs and understand how the requirements play to the corporation’s real needs.  Best of all, the partner is involved and is forced to buy in.
    An experienced practitioner can exploit the tool, however.  I have used it to drive a partner with a beer and pretzels budget but a champagne and caviar appetite into an appropriate solution for his needs.  Rather than battling over the right answer, he was forced into choosing the right answer for himself.
    In a more typical DFSS context, QFD allows you to quantify some measures which can later be used in the Pugh matrix to help evaluate different design concepts.  In my experience, this does work better if you can go back to the old style functional decomposition.  That may be a lost art in your shop.
    While much of what is written about QFD tends to be directed toward physical product designs, after you have used it a bit, if feels like a made for I/T sort of tool.
    –McD

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    #63077

    Mannu Thareja
    Participant

    Hi John,
    I agree with ur thoughts.
    regards,
    mannu 

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    #63078

    K. Uma Balasubramanian
    Participant

    Can you please share your data for reuse and knowledge sharing ?

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    #63079

    Mannu Thareja
    Participant

    I would be happy to do so…
    please mail me [email protected]
    or post ur mail Id here.
    Regards,
    Mannu
     

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    #63192

    Albert Yao
    Participant

    Hi, Mannu
    Where to get the data you shared?
    Thanks. 

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    #63268

    vasantha
    Member

    i’m vasantha,
          doing my M.E. project on QFD. i wish to know the application of QFD for SOFTWARE in detail.please help.
    bye
    vasantha

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    #63400

    laila
    Participant

    What is the weighting factor scheme you have selected for the relations of the relations ship matrix? (like 9-3-1 or 5-3-1 or 4-2-1 for high-medium-low relations). May i know why and how you have selected that particular scheme?

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    #63412

    Mannu Thareja
    Participant

    Hi Vasantha,
    On what topic u are implementing QFD.
    I would be happy to help you.
    Thanks & Regards,
    MAnnu

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    #63632

    yasin
    Member

    I WANT FREE SOFTWARE QFD, THANK YOU!

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    #63633

    John J. McDonough
    Participant

    At the risk of being accused of self-promotion … goto http://www.is-sixsigma.com
    Follow the trail of bread crumbs: Software->DFSS->QFDtool
    This is beta software but it is free.  I would very much appreciate any feedback.
    –McD
     

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    #64045

    subaash
    Member

    Can you please send a document which explains the steps and procedures for applying QFD in software design stage.

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    #65171

    bambang eko supriyanto
    Participant

    i want to software QFD

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Viewing 18 posts - 1 through 18 (of 18 total)

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