United view on ISO 9001 model and SEI CMM

The current activities of organizations are marked with awareness of importance of quality improvement management. The end product quality assurance is not efficient enough. The quality should be introduced during the whole product development process. In this paper, the two models for software process quality improvement, the ISO 9001 (Quality Systems Model for quality assurance in design/development, production, installation, and servicing) and the SEI CMM (Software Engineering Institute Capability Maturity Model), are introduced and compared. Based on experience with simultaneous introduction of both models in organizations, suggestions for the unification of both models are given.<>