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DSS and GDSS characteristics

Short answer

A DSS is an interactive computer-based system helping managers with semi-structured and unstructured decisions using database, model base and interface. GDSS key characteristics are group orientation, anonymity, parallel communication, structured techniques, automatic record keeping, electronic meeting tools, facilitator support, and reduced dominance and conflict.

Define and explain DSS systems with suitable diagram. Discuss key characteristics of GDSS systems.

Decision Support System (DSS)

A DSS is an interactive, computer-based information system that helps managers make semi-structured and unstructured decisions by combining data, analytical models and a friendly interface. It supports, not replaces, the decision maker.

 User <-> User interface (dialogue)
             |
   +-------------+-----------+
   | Model base  | Database  |
   | (what-if,   | (internal,|
   |  forecast)  |  external)|
   +-------------+-----------+

Components:

  • Database management - internal and external data.
  • Model management - mathematical, statistical, optimisation and simulation models.
  • User interface - queries, graphs, what-if dialogue.
  • Knowledge component (optional).

Features: interactive, flexible, supports "what-if" and sensitivity analysis, used by managers. Example: a bank's loan portfolio planning tool.

Characteristics of GDSS

A Group Decision Support System supports a group of decision makers working together, in the same or different place and time.

  1. Group-oriented - supports meetings and team problem solving.
  2. Anonymity of input to reduce bias and fear.
  3. Parallel communication - all can contribute simultaneously.
  4. Structured techniques - brainstorming, voting, ranking, Delphi and nominal group.
  5. Record keeping - automatic memory of discussions.
  6. Electronic meeting tools - shared screen, chat, polling.
  7. Facilitator support and network-based access.
  8. Reduces conflict and dominance and improves participation and decision quality.

✓ Answer checked by Claude Opus 5.5 (high effort)

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