2.8-1 Appropriate Use of HSI Flexibility Features

Flexible HSI features should be provided when they provide specific benefits to user tasks and their use does not impair user performance.

Additional Information:
User performance may be impaired by an excessive number of flexibility features or inadequately designed flexibility features that create demands that compete with primary tasks. Inadequately designed flexibility features can also expose the user to HSI configurations that violate human factors engineering principles and may increase the likelihood of errors and poorer task performance. Table 2.6 lists some uses of HSI flexibility that may enhance performance.

Table_2.6

Table 2.6 Uses of HSI flexibility.