I'm looking for references on statistical quality control of software.
My searches have turned up a lot of writing on how to predict the time that software projects will take, and also software which can be used to in quality control, but I haven't really found anything specifically for evaluating software quality.
Some basic questions I'd want to ask are things like:
- Does department X create more bugs than department Y?
- Does "crunch time" cause an increase in the defect rate?
In investigating these, I'm finding that data is not normally distributed, which makes me concerned that my limited stats knowledge is up to the task without help.
Also, some of my problems (e.g. the non-normal distribution) apply to quality control in general, but I'm worried about "unknown unknowns."