ISO/IEC 20926:2009
Software and systems engineering - Software measurement - IFPUG functional size measurement method 2009
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About This Item
ISO/IEC 20926:2009 defines the Software and systems engineering - Software measurement - IFPUG functional size measurement method 2009, a technical reference used to assess software functional size in a structured and repeatable way. For engineering, procurement, and compliance teams, it can support documented evaluation of software scope, technical review activities, and more consistent measurement across projects. As a derived document connected to ISO/IEC 20926, it is relevant when organizations need a reliable compliance reference for sizing, benchmarking, or quality workflows tied to functional measurement.
ISO/IEC 20926:2009 standard overview
This reference focuses on the IFPUG functional size measurement method, which is commonly used to measure software functionality from a user-oriented perspective. In practice, ISO/IEC 20926:2009 can help teams establish operational consistency when reviewing requirements, estimating effort, and comparing delivered functionality against expectations. It is often useful in technical validation, project controls, and documented assessment processes where a repeatable software measurement method supports procurement review, verification activities, and traceable engineering documentation.
Applications of ISO/IEC 20926:2009
Organizations may use ISO/IEC 20926:2009 in software development, maintenance, outsourcing, and contract-based delivery environments where functional sizing affects cost, schedule, and acceptance decisions. It is also relevant in testing workflows and conformity assessment preparation when a measurable basis is needed for scope definition or progress tracking. The method can support product evaluation, estimation models, and technical assessment activities across business systems, enterprise applications, and other software-intensive projects that require consistent measurement practices.
Why ISO/IEC 20926:2009 matters
Clear functional sizing helps reduce risk in planning and delivery because it gives stakeholders a common basis for discussion, review, and validation. ISO/IEC 20926:2009 can improve consistency in quality assurance, procurement comparison, and regulatory preparation where documented scope measurement is important. It may also support interoperability of internal processes by making estimates and acceptance criteria easier to align across teams, suppliers, and auditors. For organizations managing software contracts or large delivery portfolios, it strengthens technical control and reduces ambiguity.
- Functional size measurement method based on IFPUG practices
- Useful for estimation, scope review, and progress tracking
- Supports documented evaluation in compliance and procurement workflows
- Helps improve consistency in software measurement and validation activities
- Publication Date: 2009-11-24
- Standard Status: Derived
- Publisher: IEC
- Edition: 2
- This Version: ISO/IEC 20926 (2009-11-24)
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