How experienced is the user with the job to be performed? How well developed is the user's information technology skill set?
Often in a single environment, users will range from raw recruits to seasoned veterans, and from the technology-impaired to computer genius. Clearly, this yields several possible user permutations.
Ensure that the application is equally usable by users of all levels of experience and knowledge. This may mean providing more than one version of the user interface to cater to different users' needs.
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