Potential NASA Commercial Applications: The Phase I and Phase II non-NASA commercial potential for the ENTIRE method and supporting algorithms is significant in the following ways: ? Aviation-related commercial firms of all types (airlines, aerospace companies, consultants, etc.) need access to a methodology and algorithms that will help them plan and execute optimal mixtures of ATM and aircraft operational activities to reduce environmental impacts associated with aviation noise and emissions; and ? The long-term nature of the JPDO development of the Next Generation Air Transportation System (NGATS) implies that the changing nature of the business strategies of NAS users will require continued adjustment in the ATM/aircraft operational activities, perhaps in a tactical fashion. This will provide commercial opportunities for firms able to rapidly ingest large amounts of complex demand, capacity, and weather information, analyze this information, and produce optimal operational-activity plans.