1. International standard 9241-151: ergonomic requirements for office work with visual display terminals (VDTs), Part 151: Guidance on usability;ISO/IEC,2008
2. International standard 9241-20: ergonomics of human–system interaction, Part 20: Accessibility guidelines for information/communication technology (ICT) equipment and services;ISO/IEC,2008
3. The usability engineering life cycle: a practitioner's handbook for user interface design;Mayhew,1999
4. User interface design and evaluation;Stone,2005
5. Usability engineering: scenario-based development of human–computer interaction;Rosson;CA: Morgan-Kaufmann,2002