My name is Emerson and I'm currently involved with SPI. I have a chart which include the defect distribution along the software development process. It is very useful to illustrate and priorize the necessary actions in order to achieve better quality.
But the problem is that I don't have a recent research. The one I have is dated 1993! It distributes the defects as follows:
Thanks for the quick answer! I read the article, and it's pretty interesting. I'm looking for some statistics to justify the importance of Requirements Management. Just to explain it better, the chart I have shows that most of errors found in a system are caused by a deficient requirements definition process. I just thought I could find something similar but recent.
The article you sent can also be used to indicate the importance of error detection in early phases of software development process. I'll try to extract all the information possible.
If you guys have any other data, please send me, ok?
<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by ehosokawa: ... I'm looking for some statistics to justify the importance of Requirements Management. Just to explain it better, the chart I have shows that most of errors found in a system are caused by a deficient requirements definition process. I just thought I could find something similar but recent.
Emerson Hosokawa <HR></BLOCKQUOTE>
You really think your management will buy the need for requirements management based only on some statistics ?
Maybe will be more usefull to run a post mortem analysis for some of your closed projects and extract some relevand data from there. I think you'll have more chances.
P.S. I would advice you also to READ and consider forums' guidelines (you subject line is not exactly a good choice- read the post from the top of this forum)
... Not even me.
You might want to take a look at an article written by Ed Weller, "Calculating the Economics of Inspections". It does not specifically address the numbers you are looking at, but it might help address your overall goal. You can find this article at www.stickyminds.com Do a search on Ed Weller to find the article.
Also, you might want to look at the Chaos Report published by the Standish Group. I know the last one I saw was from the mid 1990's but I believe they are in the process on revising it based on data being collected. You should be able to find out more from www.standishgroup.com.
Hope this helps,
Carl E. Cornett, CSTE
"Knowledge is not power, it just means you have to do all the work if you don't share it."