MIL-STD-46855 Human Engineering Requirements For Military Systems, Equipment, And FacilitiesThis standard establishes and defines the requirements for applying human engineering to the design, development, and acquisition of military systems, equipment, and facilities. These requirements include the work to be accomplished in conducting a human engineering effort integrated with the total system engineering and development effort. These requirements are the basis for including human engineering in proposals; system, equipment, software and associated user interfaces, and facility analysis, design and test; and documentation and reporting.

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MIL-STD-46855A

be directed toward verifying that the system can be operated, maintained, supported, and controlled by user personnel in its intended operational environment including emergency and degraded modes. Human engineering test planning should also consider data needed from, or to be provided by, operational test and evaluation. Test planning shall include the data to be collected, the method(s) by which the data will be analyzed, and how the analysis will be used to support the overall findings of the testing. Test planning shall includes methods of testing (e.g., use of checklists, data sheets, test participant descriptors, questionnaires, operating procedures, and test procedures), schedules, quantitative measures, test criteria and reporting processes.

5.3.2 Implement planned test and evaluation. The human engineering test and evaluation plan shall be implemented upon approval by the procuring activity. Test documentation (e.g., checklists, data sheets, test participant descriptors, questionnaires, operating procedures, and test procedures) shall be available at the test site. Human engineering portions of all tests shall include the following:

a. Performance of mission or work, or a simulation thereof if actual performance is not feasible;

b. Critical tasks;

c. A representative sample of non-critical scheduled and unscheduled maintenance tasks that do not duplicate the tasks selected for a maintainability demonstration;

d. Proposed job aids, new equipment training programs, training equipment, and special support equipment;

e. Use of personnel who are representative of the range of the intended user populations in terms of aptitudes, skills, capabilities, experience, size, and strength; wearing suitable clothing and equipment appropriate to the tasks (use of personnel from the intended user population is preferred);

f. Collection of task performance data in actual operational environments, or in simulated environments if collection in the actual operating environment is not feasible;

g. Identification of discrepancies between required and obtained task performance; and h. Criteria for acceptable performance or rejection of the test.

5.3.3 Conduct failure and error analysis. All failures occurring during test and evaluation shall be subjected to a human engineering review to differentiate among failures of equipment alone, failures resulting from human-system incompatibilities, and failures due to human error. Human errors occurring in the performance of critical tasks shall be analyzed to determine the reason for their occurrence. The contractor shall identify those design characteristics or procedures which may contribute substantially to human error and shall propose corrective action.