The Core of Consistency in AHP-Group Decision Making
- 367 Downloads
This paper presents a new tool, the Consistency Consensus Matrix, designed to encourage the search for consensus in group decision making when using the Analytic Hierarchy Process (AHP). The procedure exploits one of the characteristics of AHP: the possibility of measuring consistency in judgement elicitation. Using two other tools, Preference Structures and Stability Intervals, we derive the Consistency Consensus Matrix that corresponds to the actor’s core of consistency. The performance analysis of the preference structure obtained from this matrix provides us with valuable information in search for knowledge. The new tool is illustrated by means of a case study adapted from a real-life experiment in e-democracy developed for the City Council of Zaragoza (Spain).
KeywordsGroup decision making AHP Consistency Consensus Matrix Knowledge extraction E-Democracy
Unable to display preview. Download preview PDF.
Earlier versions of this paper have been presented in the 12th MiniEuro Conference (Brussels, April 2002) and at the Workshop on e-democracy (TED-ESF) held in Madrid (May 2003). The work has been partially funded under Research Projects “Electronic Government. Internet-based Complex Decision Making: e-democracy and e-cognocracy” (Ref. PM2004-052) and “Internet-based Complex Decision Making. Decisional Tools for e-cognocracy” (Ref. TSI2005-02511).
The authors wish to express their thanks to the referees for their helpful observations and suggestions on an earlier version of this paper. They are also grateful to Stephen Wilkins for helping with the translation of the manuscript.
- Barzilai J (2001) Notes on the analytic hierarchy process, Proceedings of the NSF design and manufacturing research conference 1–6Google Scholar
- Escobar MT, Moreno-Jiménez JM (2006) Aggregation of individual preference structures in AHP-group decision making. forthcoming in Group Decision and NegotiationGoogle Scholar
- Moreno-Jiménez JM, Aguarón J, Altuzarra A, Escobar MT, Turón A (2005a) Decisional tools for knowledge improvement in e-cognocracy. In: Bhlen et al (eds) TED Conference on e-government. Electronic democracy: The challenge ahead. University Rudolf Trauner-Verlag, Schriftenreihe Informatik 13, pp. 70–78Google Scholar
- Saaty TL (1980) Multicriteria decision making: The analytic hierarchy process. McGraw-Hill. New␣YorkGoogle Scholar
- Saaty TL (1989) Group decision making and the AHP. In: Golden BL, Wasil EA, Harker PT (eds), The analytic hierarchy process: application and studies 59–67Google Scholar
- Saaty TL (1994) Fundamentals of decision making. RSW PublicationsGoogle Scholar
- Tone K (1996) Two technical notes on the AHP based on the Geometric Mean Method, Proceedings of ISAHP’96, pp. 375–381Google Scholar