ISOIEC 9126

• • Summary:**

ISO/IEC 9126 was an international standard for evaluating software quality, addressing issues like unclear project goals and human biases. It categorized software quality into six main characteristics (functionality, reliability, usability, efficiency, maintainability, portability) with sub-characteristics. The standard provided a framework for organizations to define their own quality models.

Replacing ISO/IEC 9126 in 2011 was ISO/IEC 25010:2011, part of the SQuaRE series, which introduced updates such as adding "security" and "compatibility" as main characteristics. It restructured existing categories (e.g., renaming terms) and added new sub-characteristics like "user error protection," "accessibility," and expanded "security" with sub-characteristics like confidentiality and integrity.

ISO/IEC 25010, part of the ISO/IEC 250mn series, offers a more comprehensive approach to software quality evaluation.