This Recommendation defines guidelines for measuring the usability of human-to-system interfaces in telecornmunications. Usability is widely recognized as one of the components of the Quality of Service. It plays a pivotal role in determining the success of new telecommunication services.
ITU-T F.901 FRENCH-1993 history
1993ITU-T F.901 FRENCH-1993 USABILITY EVALUATION OF TELECOMMUNICATION SERVICES Study Group 1