Software Quality Assurance Lecture Notes

1 TOPIC 1: SOFTWARE QUALITY INTRODUCTION . Quality Matters Producing quality products has been identified as a key factor in the long term success (i.e. profitability) of organizations. Quality doesnt happen by chance. Quality requires on ongoing commitment by all parties (management, designers, developers). The commitment to quality includes the use of careful development processes. Quality control must be embedded into the process. [The quality movement in Japan. Process quality ...] Managing Software Quality Define what quality means for larg software systems Measure Quality of a complete or partial system. Devise actions to improve quality of the software - Process improvements [Process Performance improvements Product Productivity improvements] - Product improvements Monitor Quality during development Software Quality Assurance - a team devoted to encouraging and enforcing quality standards. Defining Software Quality Software quality is defined as 1. Conformance to explicitly stated functional [correctness] and non-functional requirements [performance, security, maintanability, usability, etc.] i.e. Build the software described in the system Requirements and Specifications 2. Conformance to explicitly documented development standards i.e. Build the software the right way 3. Conformance to implicit characteristics that are expected of all2 professionally developed software i.e. Build software that meets the expectations of a reasonable person in