Publication Date


Document Type


First Advisor

Hackamack, Lawrence C. (Lawrence Carroll), 1921-||Green, Gerald G.

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Management


Production management--Data processing


The purpose of the study was to investigate the effects upon productive repair operations in a large manufacturing and service communication company located in northern Illinois through the introduction of a heuristic repair scheduling approach to an existing computerized repair scheduling technique. The investigation was managed by the means of a data comparison study. Equal periods of time were appointed to compare results information of preselected indices while each of the scheduling techniques, computerized and heuristic, were being utilized. The indices preselected for the comparison analysis were measurements which could be extracted from existing data being used by Company X, and were: 1. Percentage of productive hours realized when compared with hours scheduled. 2. Results of forecasting repair expenditures. 3. Results of forecasting new purchases. 4. Number of hours not satisfied but scheduled. 5. Percentage of items not returned for repair as predicted. 6. Percentage of items which were uneconomical to repair. The comparison results indicated and it was recommended that the heuristic scheduling should be installed at Company X's location in which the study was performed.


Includes bibliographical references.||Includes illustrations.


53 pages




Northern Illinois University

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