컴퓨터 운영체제 품질 평가에 관한 실증 연구

An Empirical Study on the Quality Evaluation of the Computer Operating Systems

Linux is increasingly drawing attention from the users of operating systems(OS), being considered to be an alternative to the dominant OS, Microsoft Windows. This study proposes a systematic evaluation model for the computer operating systems (OS) in terms of quality, from a user perspective. Literature review of this study shows the framework and the nature of software quality evaluation. This study builds a model, incorporating ISO 9126 standard-based criteria(quality characteristics) and the Analytic Hierarchy Process(AHP). The AHP is appropriate for subjective judgement and decomposed evaluation. This study then applies the model empirically in order to provide useful information for both the end-users and the developers of OS. Only reliable data, identified by screening with the consistency ratio of the AHP, are analyzed. At first, the study evaluates the priorities of quality characteristics and then determines the relative advantages of Windows and Linux. We have found that reliability and portability are key characteristics for the quality OS and recoverability is most important sub-characteristic. Windows turns out to be slightly better than Linux. Particularly, Windows outstands in usability and portability, whereas Linu does in efficiency. The results will provide guidelines for setting up business goals to quality improvement of the two products.