2.2.2 Requirements Definition Activity Requirements are developed early in the investment analysis process by the sponsoring organization. Capability shortfalls or technological opportunities identified in the MNS are translated through a vigorous assessment of the Strategic Plans, NAS Architecture, etc., into essential top level operational and functional requirements. The RD is continuously updated throughout the Investment Analysis process.
Requirements evolve into greater specificity throughout the process.
This ensures the acquisition community satisfies the top level requirements of the user community. The requirements definition activity flow is presented graphically in figure 2.2.2-1. The Initial RD should also address the life cycle system availability, supportability, and maintainability performance capabilities and characteristics, including the human component. The document will establish the baseline criteria for selecting candidate solutions, conducting market analyses, analyzing alternatives, and performing affordability assessments to provide the best overall approach for satisfying the mission need. Throughout the alternatives and affordability assessment phases of investment analysis process, requirements are evaluated against cost, benefit, schedule, and performance considerations.