A Communication Platform for Group Decision Support System: Based Web Services and Multicriteria Method

A Communication Platform for Group Decision Support System: Based Web Services and Multicriteria Method

Mounya Abdelhadi, Djamila Hamdadou, Nabil Menni
DOI: 10.4018/978-1-7998-9023-2.ch033
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In a group decision support system, the various decision-makers have their own information, constrains, decision strategies, preferences, and objectives which are generally not shared or communicated. This implies that the group decision process is distributed between the different entities implicated and impacted by various group members' characteristics. Solution to this problem is to find a decision that would be acceptable to all the decision-makers, following the necessity of a negotiation process that allows the elaboration of a common agreement for a group that faces a conflict on the decision to take. In the current study, the authors propose to establish a communication platform for a group decision support system (GDSS) based on web services, incorporating a multicriteria analysis methods and a negotiation protocol.
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In the domain of decision support, there is a variety of systems designed to treat different types of decision-making. However, the decision support is grouped into two broad categories: (i) The single-actor decision support - A decision-maker forms an opinion based on the information available to him (not the expertise), as well as his personal orientations (values), and (ii) The multi-actor decision support - Several actors decide with together on an issue, with personal views often divergent compared to others, which often requires the negotiation process.

In the context of single-actor decision support, several decision support systems in TP (Territory Planning) have caught attention. Joering (1997) propose system MEDUSAT for locating the site of a waste treatment plant in Tunisia. MEDUSAT combines a GIS tool allowing the creation of homogenous areas determined from spatial data and common land (constituting a similarity index); these areas constitute a set of possible solutions. Bensaid et al. (2007) use Multicriteria analysis as a tool for decision making for spatial localization of areas under heavy human pressure. In the same area, Čančer (2012) introduces the use of the 5Ws & H technique, which is the creative problem-solving technique based on who, what, when, where, why and how questions, for the establishing of the criteria weights in multi-criteria decision-making. A case study was presented at the University of Naama, Algeria in the same work. Various decision support systems rich in spatial tools and multicriteria analysis methods have been developed for management and decision making in territorial problems Hamadouche (2011). All these systems integrate in various levels multicriteria analysis tools coupled with GIS, but they consider the criteria as independent and unable to model any interaction between them.

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