Tomasz Wachowicz,  Ewa Roszkowska,   Marzena Filipowicz-Chomko, Decision Making Profile and the Choices of Preference Elicitation Mode – A Case of Using GDMS Inventory , Proceedings of the 15thInternational Symposium on Operational Research SOR'19in Slovenia, Bled, September 25-27, 2019. Edited by:L. Zadnik Stirn, M. Kljajić Borštar,J. Žerovnik, S. Drobneand J. Povh

Abstract

In this paper we analyze how the decision making profile may affect the decision makers’ (DMs) choices regarding the most preferable modes of both declaring the preferences (in the preference elicitation process) and representing the preference elicitation results by the software support systems. We use the General Decision Making Style Inventory (GDMS) that allows to describe the profile using a mix of five styles: rational, intuitive, dependent, avoidant and spontaneous. Using the dataset of online multiple criteria decision making experiment we identify the clusters of respondents with similar decision making profiles and analyze the differences in expected preference elicitation mode. Our results partially confirm earlier findings of behavioral studies in decision making that more intuitive DMs prefer the rankings and non-numerical ways of defining preferences, while the more rational ones operate more willingly with numbers and ratings. However, there is another group of GDMS-specific DMs, highly avoidant and non-spontaneous, who also differ from others with respect of preferring pictorial definition of preferences.

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