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.