Measuring efficiency of production lines based on maintenance factors; using DEA

Efficiency measurement is always considered because of its importance in performance evaluation of organization. The purpose of This study is to assess efficiency of four concentrate production lines in Chadormalu Mining & Industrial Company within two consecutive years. Hence, Data Envelopment Analysis (DEA) model is used as a quantitative analytical procedure and ends to actual standards of efficiency. In this paper consider various indicators of Maintenance as inputs as well as outputs, and the production lines are thought of Decision Making Units (DMU) that classified either as efficient or inefficient. Changes in inputs or outputs of any DMU can alter its classification, DMU change in inputs or outputs can change the DMU status to inefficient and vice versa. Therefore, Sensitivity Analysis is used to analyze how any decrease in inputs can raise the efficiency of inefficient parts. This way, those exhibiting best practice can be identified and will form an efficient frontier.