Use of these defects
Information on defects – it’s just a gold mine. This record of failures in quality, and hence – a list of opportunities to improve quality of your future projects. If you do not document the defects in your projects, then now is the time to do it. If you collect some information about defects (eg, after release, or only on large projects), then you might want to improve the process.
Information about defects that may be useful for improving the quality, includes the following questions:
- What was wrong? Need to solve the problem itself, not its symptoms. For example, a loop – this is a symptom, but a change in the index cycle – this is a problem.
- When was the problem? Exactly what effect the development was its source? This was a problem in the requirements? System design? Code? Testing?
- When the problem was identified? Maybe it was not immediately resolved, but what interests us as it existed before, as we found
- How has found this problem? Detection method can be implemented in practice is constantly used.
- Was it possible to detect it earlier? Is there any quality control process that would identify her, whether it effective?
- How much cost fix this problem? This is very easy to underestimate. Make sure that you have used to diagnose the problem and all the work, the steps that you had to be done, including re-design, rewriting the code re-compilation, processing, testing, retesting, re-release, patch release, report to the defect report on the status of the project, etc. (Do not forget all the possible costs of correcting disrepute on the software market)
- What kind of had this problem? When you have a huge number of defects and their categorization facilitates the analysis and training.
When you analyze the information about defects, then look for those defects that are discovered regularly, and those whose removal costs are high. That’s just such defects and should be avoided in the future (or at least remove them at an earlier stage of development), just such a tactic is guaranteed to improve quality.
See Also