Comparing variance reduction to managing system variance in a job shop

Authors:
Hemant V. Kher;Lawrence D. Fredendall
Affiliations:
Department of Business Administration, University of Delaware, Newark, DE;Department of Management, Clemson University, 123 Sirrine Hall, Clemson, SC
Venue:
Computers and Industrial Engineering
Year:
2004

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Abstract

Variance within the manufacturing system leads to uneven shop loads, long manufacturing lead times, and unreliable customer service. This study compares techniques that reduce system variance to techniques that manage system variance. The study is placed in a dual resource constrained job shop. Results indicate that reducing system variance improves flow time and customer service performance measures, such as mean tardiness and percent tardy jobs more than techniques that react to system variance.