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9.6.1 On Trade Studies

This paper addresses trade studies – decision making activities that must involve the selection of possible alternatives and then the evaluation of these alternatives on a set of objectives while being confronted with uncertainty about the ability of the alternatives to achieve high levels on the objectives. This discussion addresses six different types of trade studies: four for the system being developed and two for the qualification system that must address verification, validation and acceptance of the system design. The topics of this paper are the elements of all trade studies, the way in which the objectives and uncertainties change as we move from one type of trade study to another, and the benefits and pitfalls of trade studies. While this paper focuses on the trade studies for the system being developed, the same discussion could be created for the system that is developing the system being developed.