The contributions of each of these to the task describes the task. Fleishman discusses this in more detail. Information approach Defines a task as a transfer of information between components. A process is the operation performed on the information in a component. Conclusions So far, all taxonomies simplify, generalize and are applicable to all system levels.
None are complete or integrate empirical relations.
Other requirements are met to varying degrees. The abilities approach meets the fewest criteria, and information translation meets the most. The major problem is the lack of consideration given to empirical relationships such as movement time, discrimination time, choice reaction time, simple reaction time, search time, identification accuracy and detection accuracy. J. Man-Machine Studies Vol.