I have been studying some classified defect-data provided by Beizer & Vinter (http://inet.uni2.dk/~vinter/engindex.htm). However, in Beizer’s data - I noticed that he has collected these mainly from reviews of ‘System software’ only, e.g. operating systems, compilers etc. Though available industrial-sources suggest that for different types of projects there should be different percentages of defects for all phases. So to solve this – can you please suggest me some more classified defect-data resources, other than System software domain, which I can use for benchmarking purposes..?
Yeah, you are right - I am still researching on this subject..
As mentioned above, as a progress - recently I managed to get some detailed defect-data collected through validation & verification of System-Software.. but some articles suggest that density of each type of defects should be different for other project-types? So, was wondering if anyone can help?