Trade Off Analysis
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A trade study or trade-off study is the activity of a multidisciplinary team to identify the most balanced technical solutions among a trade off synonym of proposed viable solutions FAA These viable solutions are judged by their satisfaction of a series of measures or cost functions. These measures describe the desirable characteristics of a solution.
They may be conflicting or even mutually exclusive. Trade studies are commonly used in the design of aerospace and automotive vehicles and the software selection process Phillips et al. The measures are dependent on variables that characterize the different potential solutions. If the system can be characterized by a trade off synonym of equations, we can write the definition of the trade study problem trade off synonym Find the set of variables, x i that give the best overall satisfaction to the measures:.
Where T j is a target value and f … denotes some functional relationship among the variables. Further, the equality between the target and the function may be a richer relationship, as will be developed below. If the equations are linear, as in the production volume example used as a starting point below, then this problem is solvable using linear programming techniques. Generally, one or more of the targets is not fixed at a specific value and it is desired to make these T values as large or small as possible.
These are generally referred to as cost functions and the other measures are treated as constraints. If the situation was as described above, formal optimization or linear programming methods would work and there would be no need for this paper. However, in practice needed information is:. From Wikipedia, the trade off synonym encyclopedia. This article needs more links to other articles to help integrate it into the encyclopedia.
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