Using defect analysis feedback for improving quality and productivity in iterative software development

In today´s business where speed is of essence, an iterative development approach that allows the functionality to be delivered in parts has become a necessity and an effective way to manage risks. Iterative development allows feedback from an iteration to influence decisions in future iterations, thereby making software development more responsive to changing user and business needs. In this paper we discuss the role of defect analysis as a feedback mechanism to improve the quality and productivity in an iteratively developed software project. We discuss how analysis of defects found in one iteration can provide feedback for defect prevention in later iterations, leading to quality and productivity improvement. We give an example of its use and benefits on a commercial project