Modelling Group Decision Making Problems in Changeable Conditions Pérez Gálvez, Ignacio Javier Alonso Burgos, Sergio Herrera Viedma, Enrique Group decision making Mobile internet Dynamic environment Inteligencia artificial Artificial intelligence The aim of this paper is to present a new group decision making model with two important characteristics: i) we apply mobile technologies in the decision process and ii) the set of alternatives is not constant through time.We implement a prototype of a mobile decision support system based on changeable sets of alternatives. Using their mobile devices (as mobile phones or PDAs), experts can provide/receive information in anywhere and anytime. The prototype also incorporates a new system to manage the alternatives and thus, to give more realism to decision processes allowing to manage changeable set of alternatives, focussing the discussion in a subset of them that changes in each stage of the process. 2022-11-11T09:50:24Z 2022-11-11T09:50:24Z 2010 conference output Published version: Pérez, I.J... [et al.] (2010). Modelling Group Decision Making Problems in Changeable Conditions. In: Torra, V., Narukawa, Y., Daumas, M. (eds) Modeling Decisions for Artificial Intelligence. MDAI 2010. Lecture Notes in Computer Science(), vol 6408. Springer, Berlin, Heidelberg. [https://doi.org/10.1007/978-3-642-16292-3_7] https://hdl.handle.net/10481/77917 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Springer