QUALITY MODELS IN SOFTWARE PRODUCT DEVELOPMENT LIFE CYCLE

Within the software product development life cycle, one may speak on qualities of four types - process quality, internal quality, external quality, and quality in use. Various quality models have been developed in the sphere of software engineering to evaluate internal and external quality of software product. All models are based on the defined hierarchic link of quality characteristics and sub-characteristics. The quality in use model of a product is also based on certain characteristics allowing evaluation of the mentioned quality. The development of quality systems and certifying of organisations in compliance with the ISO 9001 quality standards is one of the widely applied approaches in the world practice for assurance of process quality. Quality systems shall be developed according to the defined guidelines; however, no quality models are established for evaluation of process quality. The aim of the present paper is to demonstrate that quality models with earmarked quality characteristics and sub-characteristics may also be developed for the evaluation of software product development process quality.