Many of the decisions in today's workplace are made by groups of individuals
Groups bring many advantages to the choice process: ◦ Multiple source of knowledge and experience
◦ A wider variety of prospectives
◦ Potential synergy associated with collaborative activity
Some times too many decision makers result in either a bad decision or no decision at all
Group in term of decision making can be denedGroup in term of decision making can be dened
as
as :: a collective entity that is independent of the properties of its members
Multiparticipant decision maker (MDMMultiparticipant decision maker (MDM!: An activity conducted by a collective entity composed of two or more individuals and characterised in terms of both the properties of the collective entity and of its individual members
"ecision structure# two types:
◦ $ollaborative Group decision structure: %ormal participants and multiple decision maker
&egotiation decisions Maority decisions
◦ &oncollaborative
(eam decision structure: %ormal participants and single decision maker
&egotiation decisions Maority decisions
The structure of an MDM is primarily based on the
interaction and flow of communication among the
various members.
Communication
Communication
can be thought as any means by
which information is transmitted to one or more
members of the MDM.
Basic Types of Networks Structures
1. heel Network
!. "hain Network
#. "ircle Network
%ighly "entralised
◦ They are efficient to routine and recurring decisions.
◦ They tend to strengthen the leadership position of the central members.
◦ They tend to result in a stable set of interactions among the participants.
◦ They tend to produce lower average levels of satisfaction among the participants.
%ighly Decentralised
◦ They tend to produce higher average levels of satisfaction among participants.
◦ They facilitate nonroutine or nonrecurring decisions. ◦ They promote innovation and creative solutions.
1. The importance of the &uality of the decision.
!. The e'tent to which the decision maker possess the knowledge
and e'pertise to make the decision.
#. The e'tent to which potential participants have the necessary
information.
$. The degree of structuredness of the problem conte't.
(. The degree to which the acceptance or commitment is critical to
successful implementation.
). The probability of acceptance of an autocratic decision.
*. The degree of motivation among the participants to achieve the
organisational goals.
+. The degree of potential conflicts among the participants over a
1.
Size
◦ The most widely studied and conse&uential component of group decision making.
◦ Studies show that as the si,e of a group increases- individual satisfaction tends to decrease.
s the si,e increases- the less active members tend to become noticeably less productive.
/ogic suggests that the management of an MDM
re&uiring consensus or ma0ority is easier when the si,e is small.
◦ Member cohesiveness decreases as MDM si,e increases. hen membership is high- subgroups and internal coalitions tend to form that serve redirect the focus of the participant away from the common goal.
◦ The increased likelihood for certain members of large
MDMs to feel threatened reluctant to participate because the si,e magnifies the impersonal nature of the problem
conte't.
◦ Despite the disadvantages when the si,e of the MDM increases- in certain situations such as &uantitative 0udgment in statistics- the larger the membership of the
MDM- the more likley it is that the results of the 0udgment must be made.
◦ articipant interaction tends to decrease as si,e increase. ◦ ffective or emotional relationships tend to decrease as si,e
increases.
◦ "entral- dominant leadership tend to increase as si,e increases.
◦ "onflicts is resolved with political rather than analytical solutions as si,e increases.
◦ Despite the disadvantages when the si,e of the MDM
increases- in certain situations such as &uantitative 0udgment in statistics- the larger the membership of the MDM- the more likely it is that the results of the 0udgment must be made.
!. 2roupthink3 a mode of thinking that people engage in when they are deeply involved in a cohesive in4group.
◦ The more friendly and cooperative the members of a group-the greater group-the likelihood that independent critical thinking will be suspended in deference to group norms.
5nfavourable outcomes associated with 2roupthink
1. Tends to prevent a complete open4mind analysis of opportunities in the development of ob0ectives.
!. %olds back a meaningful search for information and tends to bias any searches toward a self fulfilling selectivity.
#. /imits the participant6s ability to appraise possibilities associated with the cost of failure.
#. 7ther Social issues ◦ Conflict
The desire to be viewed as a 8good9 member and to be accepted by the other participants often leads to conflict avoidance.
Natural group dynamics such as struggle of power can result in some form of conflict.
◦ Anonymity
7ne common method used to control sources of potential conflict and to support other MDM processes is participant anonymity- i.e. vote.
:n many cases anonymity results in the generation of more and better information.
◦ Tools used in MDM environment to support the processes and activities related to the decision making process. ◦ 5sual group meeting description ;.. <Gray 1981=. ◦ New technologies and telecommunications ;; ◦ MDM support technologies can be classified based on
Thefourfour basic levels of MDM technology3
1. 7rganisational Decision Support System <ODSSODSS=3 comple' system of computer based technologies4 including those that facilitate communication4 that provides support for decision makers.
!. 2roup Support Systems <GSSGSS=3 collective of computer based technologies used to aid MDM in identifying and addressing problems- opportunities- and issues.
#. 2roup Decision support System <GDSSGDSS=3 collective of computer based technologies designed to support the activities and processes related to MDM.
$. Decision Support System <DSSDSS=3 a computer program under the control of one or more persons that provides staff within
organisations with support tools capable of enhancing the results of the decision making process.
Some of the Gain
Some of the Gain
1. "ollective has greater knowledge than a single participant.
!. llows for synergistic results.
#. :nteraction stimulates the generation of knowledge.
$. articipants can improve individual performance through learning from others.
Some of the Losses
Some of the Losses
1. "an block the production of ideas.
!. "an produce information overload much faster.
#. >elative collection of speaking time is reduced with MDM si,e
T
Types by features offered in support ypes by features offered in support of the multi-participantof the multi-participant decision-making activities:
decision-making activities: 1. >educe communication barriers.
!. >educe uncertainty and noise.
T
Types by technology ypes by technology used:used: 1. ?lectronic boardroom. !. Teleconference room. #. 2roup network. $. :nformation centre . (. "ollaboration laboratory. ). Decision room.
Groupare
Groupare:: particular type of MDM support technology
specifically focused on issues related to collaborative processes among people. @ou can think of it as a tool that-when deployed and used appropriately- positively affects that way people communicate with each other- resulting in an improvement in the way people work.
Current market leaders of
Current market leaders of GroupareGroupare:: ◦ /otus Notes
◦ Microsoft ?'change ◦ 7racle 7ffice
◦ 2roupise ◦ Team 7ffice