Barry Boehm
ABSTRACT
This Technical Briefing describes the nature of Software Qualities (SQs), ilities, or non-functional requirements (reliability, usability, affordability, etc.), and discusses the importance of understanding their nature and interrelationships, and of bringing them into balance in the practice of software engineering. The relevance and timeliness of this topic reflects the current and future trends toward more software-intensive systems, with greater complexity, autonomy, speed of change, and need for interoperability within systems of systems, given the frequent system shortfalls and overruns that occur when their SQ balance is not achieved. It discusses the weaknesses of current SQ standards and guidance, and summarizes research toward strengthening current SQ definitions and relationships. This includes a set of initial SQ ontology elements and relationships, examples of their application to some key SQs, an identification of further research and development needed to make the ontology fully useful and evolvable, and the nature of an international collaborative effort to help improve current practices via a Qualipedia for accessing the evolving body of knowledge for improving SQ engineering.
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Index Terms
- Improving and balancing software qualities
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