Metrics for Assessing Design Freedom and Information Certainty in the Early Stages of Design

[+] Author and Article Information
T. W. Simpson, D. Rosen, J. K. Allen, F. Mistree

Systems Realization Laboratory, Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405

J. Mech. Des 120(4), 628-635 (Dec 01, 1998) (8 pages) doi:10.1115/1.2829325 History: Received July 01, 1996; Revised July 01, 1998; Online December 11, 2007


Our primary focus in this paper is on open engineering systems. Developing ranged sets (as opposed to point sets) of top-level design specifications is a means to enhance openness and system flexibility by increasing design knowledge while maintaining design freedom. Consequently, our secondary focus in this paper is on metrics for assessing the design freedom and information certainty associated with a ranged set of top-level design specifications. As a demonstration, these metrics are applied to an example problem, namely, the conceptual design of a family of aircraft. Our emphasis in this paper is on introducing open engineering systems and metrics for design freedom and information certainty, and not on the example, per se.

Copyright © 1998 by The American Society of Mechanical Engineers
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