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

B. Casu*, D. Shaw, E. Thanassoulis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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 on 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 an advisory board to enable the analysts 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. © 2005 Operational Research Society Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)1363-1372
Number of pages10
JournalJournal of the Operational Research Society
Issue number12
Publication statusPublished - 2005


  • data envelopment analysis
  • efficiency measurement
  • group support systems
  • performance management
  • productivity analysis


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