Japan serves as international convenor and secretary of ISO/SC7/WG6

Software products are used in products in virtually all fields, including home information appliances, automobiles,aerospace, and social infrastructure. Software failures can have serious consequences. The best way to prevent such failures is to improve the quality of software products.

Japan serves as international convenor and secretary of ISO/SC7/WG6 (Software products evaluation
and metrics). Japan also proposes a system (comprising a total of 19 standards) for the ISO/IEC 25000
series, known as the Software Product Quality Requirements and Evaluation (SQuaRE) and establishes
standards accordingly as project editor.

SQuaRE was established by consolidating existing standards for software product quality, including the
ISO/IEC 9126 series and ISO/IEC 14598 series to ensure mutual consistency. It consists of the following
six divisions:
1) 2500n: Quality Management Division (two standards):
Defining common models, terms, and definitions referenced by other standards from the SQuaRE series
2) 2501n: Quality Model Division (two standards):
Presenting a detailed quality model, including quality characteristics for internal software quality, external
software quality, and quality in use
3) 2502n: Quality Measurement Division (five standards):
Defining a software product quality measurement reference model, mathematical definitions of quality
measures, and practical guidance for their application
4) 2503n: Quality Requirements Division (one standard):
Providing definitions to help specify quality requirements
5) 2504n: Quality Evaluation Division (six standards):
Providing requirements, recommendations, and guidelines for software product evaluation by evaluators,acquirers, and developers
6) 25051 to 25099: SQuaRE Extension Division (three
standards): Providing standards that supplement standards provided by other divisions; applicable to all
divisions
The development, testing, and quality management of software products based on this series of standards ensure the production of high quality software products.