GB/T 25000.23-2019 Systems and software engineering—Systems and software Quality Requirements and Evaluation(SQuaRE)—Part 23:Measurement of system and software product quality

Scope

This part of GB/T 25000 is based on the characteristics and sub-characteristics defined in GB/T 25000.10-2016, and specifies the measures used to quantitatively evaluate the quality of systems and software products. The quality measures defined in this part need to be used in conjunction with GB/T 25000.10-2016, and can be combined with the quality requirements section (ISO/IEC 2503n) and evaluation section (ISO/IEC 2504n) of the SQuaRE series of international standards, in order to more comprehensively meet users' definition and evaluation of the quality requirements of software products and systems.
This part includes the following content:
—— The basic set of quality measures for each characteristic and sub-characteristic;
—— Explanations on how to apply quality measures to software products and systems.
This part provides considerations for using quality measures in the appendix (Appendix B), defines product or system quality measures using quality measure elements (Appendix C), and provides detailed explanations of measurement types (Appendix D).
This part does not set a range of measurement values for a certain evaluation level or compliance level, because these values are determined based on the nature of each system, product, or part of a product, and depend on the software category, completeness level, and user needs. Some attributes may have an expected value range. These ranges do not depend on specific user needs, but on common factors, such as human cognitive factors.
The quality measures proposed in this part are mainly used for quality assurance and the improvement of systems and software products during or after the development lifecycle.

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