Using a group support system to aid input-output identification in DEA

In data envelopment analysis (DEA), operating units are compared on their Outputs relative to their inputs. The identification of an appropriate input-output Set is of decisive significance if assessment of the relative performance of the units is not to be biased. This paper reports oil a novel approach used for identifying a suitable input-output set for assessing central administrative services at universities. A computer-supported group support system was used with all advisory board to enable the analysis to extract information pertaining to the boundaries Of the unit of assessment and the corresponding input-output Variables. The approach provides for a more comprehensive and less inhibited discussion Of input-output variables to inform the DEA model.