THE CONTRIBUTION OF THIS PAPER IS TO PROVIDE AN APPROACH FOR EVALUATING THE PERFORMANCE OF A GROUP OF DECISION MAKING UNITS (DMUS) BASED ON THE PRODUCTION TECHNOLOGY. GROUP EVALUATION IS AN APPLICATION OF DATA ENVELOPMENT ANALYSIS (DEA). DEA USES LINEAR PROGRAMMING TO PROVIDE A SUITABLE TECHNIQUE TO ESTIMATE A MULTIPLE-INPUT/MULTIPLE-OUTPUT EMPIRICAL E.CIENT FUNCTION. IN THIS PAPER, AN APPROACH FOR EVALUATING THE PERFORMANCE OF A GROUP OF DMUS IS PROPOSED.