Systems Engineering Process Most descriptions of systems engineering are in terms of the process for carrying out the iterations and associated trade-off that result in a design for the system that fulfil the needs and desires of the users and other stakeholders. At this time, there are no single accepted systems engineering process. Instead, the process varies somewhat among textbooks, handbooks, standards, and corporate policies. The following description recounts typical systems engineering process for developing a military space system within the context of the 5000 series of DoD acquisition directives and instructions and the National Security Space Acquisition Policy (NSSAP) as well as instructions and manuals for the capability needs process issued by the Chairman of the Joint Chiefs of Staff (CJCS). In DoD programs, the process usually starts with the iterative definition of the driving requirements and the architecture or design concept that responds to those requirements as the basis for further development. Site problems