GEIA Engineering Bulletin: Human Engineering: Principles and Practices

The contractor should establish and conduct a T&E program to
demonstrate conformance of system, equipment, and facility design to HE design criteria;
confirm compliance with system performance requirements where personnel performance is a system performance determinant;
secure quantitative measures of system performance that are a function of the human interaction with equipment; and
determine whether undesirable design or procedural features have been introduced.
Maximum use should be made of the data collected from experiments, tests, and studies (see 2.2.1). Both qualitative and quantitative data can be used to support HE efforts in the T&E process. The fact that these functions may occur at various stages in system, subsystem, or equipment development should not preclude final HE verification of the complete system. Both operator and maintainer tasks should be performed as described in approved test plans during the final system test.
HE testing using certified operational software should be incorporated into the system T&E program and should be integrated into engineering design and development tests, contractor demonstrations, flight tests, acceptance tests, and other development tests. Compliance with HE requirements should be tested as early as possible. HE findings from design reviews, mockup inspections, demonstrations, and other early engineering tests should be used in planning and conducting later tests. HE test planning should be directed toward verifying that the system can be operated, maintained, supported, and controlled by user personnel in its intended operational environment. HE test planning should also consider data needed from...