To know about DSS and its relevant importance .
To know about GDSS and its usage.
MIS DSSSupport Info about
performanceInfo and modeling to analyze problems
Report Form
Periodic reports
or On Demand
Interactive Inquiries
Format Pre-specifiedFixed format
Flexible and Adaptable
Processing Extract and manipulate data
Analytical modeling of data
Dimensions TPS MIS DSS
Ease of use Low Moderate High
ProcessingInterest
Expediency Efficiency Effectiveness
Reason fordevelopment
Cost saving,customer service
Reporting basicinformation
Improved decisionmaking
an information systempurpose to provide information for
making informed decisions interactive (needed for
experimenting and prospecting)
Is an interactive, computer based system used to facilitate the solution of unstructured problems by a set of decision makers.
Consists of most of the elements in a DSS, plus GDSS software to support group decision making
Also known as a computerized collaborative work system
Special design Ease of use Flexibility Decision-making support Cost, control, and complexity factors Anonymous input Reduction of negative group behavior Parallel communications Automated record keeping
Hardware : conference facility including the room, the tables and the chairs and should be physically laid.
Software Tools : e-questionnaires, e-brainstorming, idea organizers, group dictionaries, questionnaire tools, policy formation tools.
People : includes not only participants but trained facilitator and staff support.
[Figure 10.12]
Delphi approach Used when group decision makers are
geographically dispersed
Brainstorming Involves decision makers offering ideas
“off the top of their heads” Fosters creative and free thinking
Group consensus approach Forces members in a group to reach a
unanimous decision
Nominal group technique Encourages feedback from individual
group members
Offers useful tools for group work Compound documents
▪ Include documents to be created, used, and shared by members of a group
Groupware (workgroup software)▪ Helps with joint work group scheduling,
communication, and management
[Figure 10.14]
Decision room alternative Decision makers are
located in the same building or geographic area.
Decision makers are occasional users of the GDSS approach.
Local area decision network Group members are located in the same
building or geographic area. Group decision making is frequent.
Teleconferencing alternative Location of group members is distant. Decision frequency is low.
Wide area decision network Location of group
members is distant. Decision frequency is
high. Virtual workgroups
▪ Groups of workers located around the world working on common problems via a GDSS
Workstations are provided to each attendee.
Are networked and connected to facilitator’s workstation and the meeting’s file server.
Activities Undertaken:Idea GenerationIdea OrganizationPrioritizingPolicy Development
Contributes to a more collaborative atmosphere by guaranteeing contributor’s anonymity.
Properly designed GDSS meetings can increase the no. of ideas generated
Most useful for tasks involving idea generation, complex problems and large groups.
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