Applying Testing to Enhance Software Product Quality

Software free from defects is a goal to be ideally achieved. Defects in software do arise from the development process. A possible solution for quality improvement is to apply a reference framework for software testing during all development phases. What is needed is a software testing process performed along with its development, in an orderly and simple way, even if the software development have been conducted in an organization without maturity certification. This investigation proposes to validate the hypothesis: software product quality is dependent on the software testing. In order to verify and validate the proposed hypothesis, it was applied to a case study, in which the statistical technique for Pearson's Chi-Square was used to determine whether there is a significant relationship among the categorical variables based on software testing results. This case study was derived from an actual project at the Brazilian Aeronautics Institute of Technology and its preliminary results are promising.