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Life-cycle engineering is a part-, system-, or process-related tool for the investigation of environmental parameters based on technical and economic measures. This article focuses on life-cycle engineering as a method for evaluating impacts. It describes the four-steps of life-cycle analysis, namely, goal definition and scoping, inventory analysis, impact assessment and interpretation, and improvement analysis. The article provides information on the applications of life-cycle analysis results and presents a case history of life-cycle analysis of an automobile fender.

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ASM International Materials Life-Cycle Analysis Committee , Hans H. Portisch, Steven B. Young, John L. Sullivan, Matthias Harsch, Manfred Schuckert, Peter Eyerer, Konrad Saur, 1997. "Life-Cycle Engineering and Design", Materials Selection and Design, George E. Dieter

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