Status and problems of quality assessment of information systems

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Hileta I. V., Білас Ю. Ю. № 2 (65) 22-31 Image Image

The concept of quality of an information system is analyzed. It is established that the perception and interpretation of quality depends on the subject of consideration. The quality assessment is based on the quality model. The quality model of McCall and Boehm is analyzed. The ISO/IEC 9126 standard defines goals, attributes, and metrics for assessing the quality of information system software. The quality model, which is created within the framework of the ISO/IEC 9126 standard, is determined by general characteristics. The information system quality characteristics and attributes are divided into three groups: categorical, quantitative and qualitative. Problems of aggregation of quality characteristics based on the interconnection scheme. This necessitates the development of a methodology for integrated quality assessment of information system software. The IEEE 1061 standard describes a hierarchical methodology. An important component in the process of ensuring the quality of information systems software is quality management in design, in particular, in object-oriented design. The following characteristics have a significant impact on the quality of object-oriented information systems: methods of object abstraction, localization, encapsulation, inheritance, and polymorphism. The well-known metrics for object-oriented information systems are the Chaidembert and Kemerer metrics. An approach to assessing software quality using expert opinions is considered. An integral indicator of the quality of information systems is formed taking into account partial indicators and taking into account weights. An important aspect of software quality management is its compliance with proper indicators at all phases of the software system life cycle. The issue of assessing the quality of information systems from a management perspective is considered. It is extremely important to have a single criterion that will unambiguously determine the quality of information systems to ensure business performance.

Keywords: information technology, software product, program code quality, quality indicators, quality standards.

doi: 10.32403/1998-6912-2022-2-65-22-31


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