Homer, Jack with Fred Nichols, "Enterprise Modeling at ETS: Highways and Biways", 1996
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Educational Testing Service, the world leader in standardized educational testing, has begun a transition from paper-and pencil testing to computer-based testing. This transition is a complex undertaking affecting the entire organization, and will require several years to complete. An integrated enterprise model has been developed to assess financial impacts of the transition and to look for better ways to manage it. Smaller side models have also been developed for exploring a few key issues individually in greater depth and with more elaboration than the large model would allow. Such a mixed "highways and byways" approach to modeling allows one to achieve a solid final product while providing useful, engaging insight along the way.