ISO/IEC 9126 - Developments

Developments

ISO/IEC then started work on SQuaRE (Software product Quality Requirements and Evaluation), a more extensive series of standards to replace ISO/IEC 9126, with numbers of the form ISO/IEC 250mn. For instance, ISO/IEC 25000 was issued in 2005, and ISO/IEC 25010, which supersedes ISO/IEC 9126-1, was issued in March 2011. ISO 25010 has eight product quality characteristics (in contrast to ISO 9126's six), and 31 subcharacteristics.

  • Functionality is renamed Functional suitability. Functional completeness is added as a subcharacteristic, and interoperability and security are moved elsewhere. Accuracy is renamed functional correctness, and Suitability is renamed Functional appropriateness.
  • Efficiency is renamed Performance efficiency. Capacity is added as a subcharactersitic.
  • Compatibility is a new characteristic, with Co-existence moved from Portability and Interoperability moved from Functionality.
  • Usability has new subcharacteristics of User error protection and Accessibility (use by people with a wide range of characteristics). Understandability is renamed Appropriateness recognizability, and Attractiveness is renamed User interface aesthetics.
  • Reliability has a new subcharacteristic of Availability (when required for use).
  • Security is a new characteristic with subcharacteristics of Confidentiality (data accessible only by those authorized), Integrity (protection from unauthorized modification), Non-repudiation (actions can be proven to have taken place), Accountibility (actions can be traced to who did them), and Authenticity (identity can be proved to be the one claimed).
  • Maintainability has new subcharacteristics of Modularity (changed in one component has a minimal impact on others) and Reusability, and Changeability and Stability are rolled up into Modifiability.
  • Portability has Co-existence moved elsewhere.

Read more about this topic:  ISO/IEC 9126

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