5-4 Concept & Requirements Definition

HF Assessments to Support Development of Solutions and Requirements. The analysis of solutions and requirements needs HF input regarding task allocations, along with completion of a function analysis focused on the performance of the operator and on interactions of the operator with supporting automation to ensure:

• Definition of the roles and responsibilities of key participants (e.g., controllers, traffic managers, maintenance technicians, pilots)
• Determination of whether the proposed allocations present HF risks
  

Scenario Development. HF task and function analyses then support the development of robust scenarios to be used in concept development and demonstration. The task analyses can be used to drive the development of scenarios that help to ensure that a given task sequence is demonstrated from end-to-end in a scenario and that all necessary functionality is present for review and analysis. Such a scenario-based approach is important as concepts demonstrated simply through disconnected or partial completion of disparate tasks that do not fully demonstrate the relevant operational scenario are not likely to reveal all of the human performance risks sufficiently early in the AMS process. 

These scenarios are developed by examining the potential uses of the future system and the roles people will play as operators and maintainers, including not only nominal scenarios but also scenarios highlighting workflows and operational and environmental conditions identified and documented in Critical Task Analysis Reports (see p. B-7). 

Verification and Validation (V&V). To minimize “to minimize technical, programmatic, and operational risk”, early HF evaluations are performed to support determination of concept feasibility and analysis of alternative solutions during SASP and CRD phases. During CRD, Consistent with AMS policy Section 4.7, HF involvement during V&V serves to ensure that performance requirements are consistent with human capabilities and limitations in the validation of the following products:

• Shortfall Analysis Report
• Preliminary Program Requirements Document (pPRD)
• Solution Concept of Operations
• Enterprise architecture products
• Initial investment analysis plan
• Preliminary information systems security assessment (crdguidelines.pdf (faa.gov))