| Modeling and Simulation in Systems EngineeringWhither Simulation Based Acquisition?Andrew P. SageStephen R. Olson Simulation and modeling are major assets in the engineeringof systems of all types. This two-part series addresses themuch expanded role for M&S that is due to the prospect thatevolutionary and adaptive engineering efforts are the wave ofthe future. The Department of Defense's Simulation BasedAcquisitioninitiative is a case in point, but some critical issues needto be addressed to bring it to fruition. In this first part,we set the background in systems engineering, information technologyand the new role of complex adaptive system models that arechanging our view of organizations as machines to organizationsas organisms.

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