Group Decision Making

Rating method Ratings of each DM for every criterion are averaged. The average ratings are then normalized to obtain the group criteria 

Borda count Points are assigned based on the number of DMs that assign a particular rank for a criterion. These points are then totaled for each criterion and normalized to get criteria weights. (This is similar to how the college polls are done to get the top 25 football or basketball teams.) 

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Other problems of working together include lack of a common mission, commitment, and costs of group decision making. 

Ward, J.C. and Reingen, P.H. (1990) Sociocognitive analysis of group decision making among consumers. Journal of Consumer Research 17 (December), 245-262. 

Welch, D. A. (1989), Group Decision Making Reconsidered, Journal of Conflict Resolution, Vol. 

Teamwork can enrich jobs through different mechanisms. Skill variety can be increased from both project activity and one s role within the team. Activities such as data collection and analysis, problem solving, presenting information to groups, and group decision making are key elements in quality-related teamwork, which may not be part of workers daily routines. Team projects can typically be expected to increase the variety of stimuli to which employees are exposed (Rafaeli 1985). 

Basak, 1., and Saaty, T. (1993), Group Decision Making Using the Analytic Hierarchy Process, Mathematical and Corrtputer Modeling, Vol. 17, pp. 101-109. 

Brashers, D. E., Adkins, M., and Meyers, R. A. (1994), Argumentation and Computer-Mediated Group Decision Making, 12 in Group Communication in Context, L. R. Frey, Ed., Erlbaum, HiUsdale, NJ. 

Harmon, J., and Rohrbaugh, J. (1990), Social Judgement Analysis and Small Group Decision Making Cognitive Feedback Effects on Individual and Collective Performance, Organizational Behavior and Human Decision Processes, Vol. 46, pp. 34-54. 

Mockler, R. L., and Dologite, D. G. (1991), Using Computer Software to Improve Group Decision-Making, Long Range Planning, Vol. 24, pp. 44-57. 

Paese, P. W., Bieser, M., and Tubbs, M. E. (1993), Eraming Effects and Choice Shifts in Group Decision Making, Organizational Behavior and Human Decision Processes, Vol. 56, pp. 149-165. 

Stanoulov, N. (1994), Expert Knowledge and Computer-Aided Group Decision Making Some Pragmatic Reflections, Anniz/s of Operations Research, Vol. 51, pp. 141-162. 

Stasser, G., and Titus, W. (1985), Pooling of Unshared Information in Group Decision Making Biased Information Sampling during Discussion, Journal of Personality and Social Psychology, Vol. 48, pp. 1467-1478. 

Computerized work sampling, 1458 Computer languages, 2446, 2449-2450, 2454-2456. See also specific languages Computer-mediated group decision making, 2214... 

Prescriptive approaches for group decision making, 2212-2214 Presentation language, 131-132 Presentation support software, 142 Present worth, probability distribution for, 2367-2369, 2371-2376 discrete distribution, 2372-2373 expected present worth, 2367-2368 mean and variance, using only, 2373-2374 normal distribution, assumption of, 2374-2376... 

SOCAP (Society of Consumer Affairs Professionals), 657 Social democracy, 1186 Social environment, and human-computer interaction, 1217, 1220-1222 Socialization of employees, 857 Social judgment theory (SJT), 129, 2200 Social norms, and group decision making, 2209-2210... 

Cannon-Bowers, J. A., Salas, E., Converse, S. (1993). Shared mental models in expert team decision making. In N. J. Castellan (Ed.), Individual and group decision making (pp. 221-246). NJ Lawrence Erlbaum Associates, Hillsdale. 

Sanayei, A. Mousavi, S. E Abdi, M. R, Mohaghar, A. 2008. An integrated group decision-making process for supplier selection and order allocation using multi-attribute utility theory and linear programming. Journal of the Franklin Institute. 345 (7) 731-747. 

Zimmerman, B., and Hayday, B. A Board s Journey into Complexity Science. Group Decision Making and Negotiation, 1999, 8, 281-303. 

Patel, U. R. 2007. Experiments in group decision making in the analytic hierarchy process. MS Thesis, Department of Industrial Engineering, The Pennsylvania State University, University Park, PA. 

Most of the supplier selection practices involve the participation of multiple DMs and the ultimate decision is based on the aggregation of DMs individual judgments to arrive at a group decision. We have aggregated the preferences of the four DMs using different group decision making techniques discussed in Chapter 6, Section 6.3.9 ... 

The top five suppliers identified by the aforementioned group decision-making methods are presented in Table 7.19. 

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