Strategic assumption surfacing and testing

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)