Using QFD for software requirements development
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- This topic has 17 replies, 13 voices, and was last updated 13 years, 9 months ago by
bambang eko supriyanto.
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June 5, 2003 at 5:00 pm #25920
Has anyone had success using QFD to cascade business requirements into coding. If so, what were your QFD phases (i.e. product, part, manufacturing)?
0June 13, 2003 at 2:34 pm #62957We 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
0August 23, 2003 at 9:25 am #63039
Vikas M. ValsangMember@Vikas-M.-ValsangInclude @Vikas-M.-Valsang in your post and this person will
be notified via email.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.
0September 1, 2003 at 8:28 am #63055
K. Uma BalasubramanianParticipant@K.-Uma-BalasubramanianInclude @K.-Uma-Balasubramanian in your post and this person will
be notified via email.Can you kindly provide us a sample QFD (as I am interested in non Functional requirements too)
0September 1, 2003 at 9:20 am #63056
Vikas M. ValsangMember@Vikas-M.-ValsangInclude @Vikas-M.-Valsang in your post and this person will
be notified via email.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.
0September 15, 2003 at 11:19 am #63072
Mannu TharejaParticipant@Mannu-TharejaInclude @Mannu-Thareja in your post and this person will
be notified via email.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?0September 15, 2003 at 4:43 pm #63073
John McDonoughParticipant@John-McDonoughInclude @John-McDonough in your post and this person will
be notified via email.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.
–McD0September 16, 2003 at 8:01 pm #63077
Mannu TharejaParticipant@Mannu-TharejaInclude @Mannu-Thareja in your post and this person will
be notified via email.Hi John,
I agree with ur thoughts.
regards,
mannu0September 17, 2003 at 4:04 am #63078
K. Uma BalasubramanianParticipant@K.-Uma-BalasubramanianInclude @K.-Uma-Balasubramanian in your post and this person will
be notified via email.Can you please share your data for reuse and knowledge sharing ?
0September 17, 2003 at 5:17 am #63079
Mannu TharejaParticipant@Mannu-TharejaInclude @Mannu-Thareja in your post and this person will
be notified via email.I would be happy to do so…
please mail me [email protected]
or post ur mail Id here.
Regards,
Mannu
0November 18, 2003 at 3:27 am #63192
Albert YaoParticipant@Albert-YaoInclude @Albert-Yao in your post and this person will
be notified via email.Hi, Mannu
Where to get the data you shared?
Thanks.0January 8, 2004 at 4:45 am #63268i’m vasantha,
doing my M.E. project on QFD. i wish to know the application of QFD for SOFTWARE in detail.please help.
bye
vasantha0April 16, 2004 at 10:33 am #63400What 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?
0April 23, 2004 at 9:19 am #63412
Mannu TharejaParticipant@Mannu-TharejaInclude @Mannu-Thareja in your post and this person will
be notified via email.Hi Vasantha,
On what topic u are implementing QFD.
I would be happy to help you.
Thanks & Regards,
MAnnu0August 3, 2004 at 4:41 am #63632I WANT FREE SOFTWARE QFD, THANK YOU!
0August 3, 2004 at 5:00 pm #63633
John J. McDonoughParticipant@John-J.-McDonoughInclude @John-J.-McDonough in your post and this person will
be notified via email.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
0August 28, 2005 at 2:57 pm #64045Can you please send a document which explains the steps and procedures for applying QFD in software design stage.
0September 17, 2008 at 9:08 am #65171
bambang eko supriyantoParticipant@bambang-eko-supriyantoInclude @bambang-eko-supriyanto in your post and this person will
be notified via email.i want to software QFD
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