Asynchronous and Distributed Multi-Criteria Decision Making Using a Web-Based Group Support System

2011 ◽  
pp. 168-191 ◽  
Author(s):  
Sajjad Zahir ◽  
Brian Dobing
Keyword(s):  
Decision Making ◽  
Support System ◽  
Prototype System ◽  
Group Support ◽  
Analytic Hierarchy ◽  
Group Support System ◽  
Web Based ◽  
Typing Skills ◽  
Conventional Systems ◽  
User Friendly

A detailed model for designing a Web-based Multi-Criteria Group Support System (MCGSS) is presented. The model is based on the Analytic Hierarchy Process (AHP) and uses the intensity of preferences of group members rather than simple voting procedures. This approach offers several advantages over simple voting mechanisms, including a much richer picture of both individual and group positions and more equitable decision-making. A prototype system, with a user-friendly graphical user interface (GUI), has been developed and used to analyze an experimental group decision process over the Internet. This permits a wider range of users, including those with limited typing skills, asynchronous communication across many time zones, and a larger number of participants than conventional systems. An agenda for further research is outlined.

scholarly journals Group support system and explanatory feedback: An experimental study of mitigating halo effect

2015 ◽  
Vol 18 (3) ◽  
pp. 417
Author(s):  
Intiyas Utami ◽  
Sutarto Wijono
Keyword(s):  
Decision Making ◽  
Experimental Study ◽  
Support System ◽  
Halo Effect ◽  
Comprehensive Assessment ◽  
Decision Making Process ◽  
Initial Condition ◽  
Group Support ◽  
Group Support System ◽  
Online Web

Comprehensive assessment potentially leads to halo effect that will affect accuracy of auditors decision-making process. Biased initial audit decision will potentially influence final audit decision. It is there-fore necessary to mitigate halo effect that is the consequence of auditors good impression on clients initial condition. This re-search aims to empirically show that halo effect can be mitigated by explanatory feedback and Group Support System (GSS). The researchers experimentally mani-pulate explanatory feedback and GSS using online web-site. The subjects are stu-dents who have already taken auditing courses. The results show that: 1) explanato-ry feedback can mitigate halo effect so that audit decision will be more accurate 2) GSS can also mitigate halo effect 3) explanatory feedback and GSS are the best me-thods to mitigate halo effect.

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