This study confirms that GIS constitutes a powerful tool for 
deterministic analysis of all the spatial data as well as the 
analysis of spatial multicriteria problems. 
Much work has been carried out on the development of both 
GIS and MCE techniques, but mostly in isolation. 
Besides the integration of GIS and ELECTRE methods this 
work would find out a wide thought on the relationship 
between GIS and multicriteria decision making. 
Integrating MCE with GIS for spatial decision -making 
purposes is both a worthwhile aim and one which will be of 
widespread utility to those involved in what is (and will 
continue to be) a mainstay application of GIS technology. 
This will in turn create the opportunity fore the increased use 
of GIS based technology as the bases of spatial decision 
support systems. 
It is important to note , however, that GIS and MCE techniques 
are merely tools which provide a means to an end. Without the 
knowledge and expertise of the operator and decision-maker, 
and without appropriate data, such tools would be useless. 
Nevertheless, GIS-MCE applications appear to represent 
potentially fruitful areas for further research and development. 
REFERENCES 
S. J. Carver. . Integrating multicriteria evaluation with 
geographical information systems. International Journal of 
Geographical Information Systems, Vol. 5, No. 3, 321-339, 
1991. 
J. R. Eastman, P. A. K. Kyem, J. Toledano and W. Jin. GIS 
and Decision Making. UNITAR European Office, Vol. 4, 1993. 
F. Joerin. Méthodes Multicritéres d'Aide a la Décision et SIG 
pour la Recherche dun Site. International Journal of GIS and 
Spatial Analysis, Vol. 5, No. 1, 37-51, 1995. 
J. M. Pereira and al. A Multiple Criteria Decision-Making 
approach to  GIS-Based Land Suitability Evaluation. 
International Journal of Geographical Information Systems, 
Vol. 7, No. 5, 407-424, 1993. 
A. Schürlig. Décider sur Plusieurs Critéres. Panorama de 
lAide à la Décision multicritére, Presse Polytechniques 
Romandes, 304 p, 1985. 
W. YU. Esc ELECTRE Tri: Aspects méthodologiques et 
manuel d'utilisation. Document du LAMSADE, N° 74, 
Université Paris-Dauphine, 1992. 
90 International Archives of Photogrammetry and Remote Sensing. Vol. XXXII, Part 7, Budapest, 1998 
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