1. (2002). International Standard: Information Technology;ISO;Software Life Cycle Processes. Amendment Amd.,1995
2. ISO/IEC 25010 (2011) Systems and software engineering - SquaRE -Software product Quality Requirements and Evaluation: System and Software Quality Models. ISO/IEC 25010 (2011) Systems and software engineering - SquaRE -Software product Quality Requirements and Evaluation: System and Software Quality Models.
3. ISO 9242-11. 2018. Ergonomics of human-system interaction -- Part 11: Usability: Definitions and concepts. ISO 9242-11. 2018. Ergonomics of human-system interaction -- Part 11: Usability: Definitions and concepts.
4. An Empirical Evaluation of the System Usability Scale