Strategic assumption surfacing and testing
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The Strategic Assumptions Sufacing and Testing (SAST), which was developed in the US by Richard Mason et al., is a process which reveals the underlying assumptions of a policy or plan and helps create a map for exploring them.(Reference: W.H. ElMaraghy, J.Gao, "A Sytem Modeling Framework for Collaborative Engineering", The 15th International CIRP Design Seminar-2005, See also: Mason, R.O., and Mitroff, I.I., 1981; "Challenging Strategic Planning Assumptions:Theory,Cases and Techniques", NY, Wiley, ISBN: 0471082198)