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"quality of worksystem in use" (Pronounce)
 
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 Comment
The difference between usability and quality of a worksystem in in use is a matter of focus. When usability is evaluated, the focus is on improving a product while the other components of the worksystem (user, task, equipment and environment) are treated as given. When the quality of a worksystem in use is evaluated, any component may be subject to modification or improvement.
1 definition was found:
 
 Definition
The extent to which specified goals can be achieved with effectiveness, efficiency and satisfaction in a specified context of use.
 Source
ISO 9241-11
 
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