Development methods and testing: some issues [software engineering]

The paper examines a number of issues in the relationship between the methods used to develop software, and the question of how it should be tested. A conceptual frame of reference from software quality management is adopted. This conceptualizes the overall development process in terms of a life cycle model, with well-defined constituent development processes and development products. For each development process one can examine the inputs, transformations and outputs, and various characteristics of the process itself, such as the procedure used and resource consumption. Development products similarly have various characteristics, including definitional constructs, quality attributes and their component structure