Techniques and concepts stemming from occupational psychology could be considered to achieve this goal. Techniques to reflect differences in mental models between designers and end users could enable the migration of the cognitive perspective into the evaluation process.
In order to bridge the gap between design and evaluation, isolated usability problems have to be considered in the context of the design knowledge. Only through the development of underlying theories dealing with human-computer interaction, presenting clear analytical definitions of usability principles, multiperspective usability evaluation techniques can be developed. They enable placing usability in the natural context of use consisting of the users, their jobs and tasks, their hard- and software, and the organizational, technical and physical environment.
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