This Recommendation presents the tools and methods that support the general working procedure described in Recommendation 2.332. Taken together, Recommendations 2.332 and 2.333 constitute the methodology
for the specification of the man-machine interface
ITU-T Z.333-1989 history
1989ITU-T Z.333-1989 Methodology for the Specification of the Man-Machine Interface Tools and Methods - Man-Machine Language (MML) (Study Group X) 18 pp