A Group Decision Support System (GDSS) is an interactive computer system that facilitates the resolution of unstructured problems by a group of decision-makers working together.
What is a GDSS used for?
A GDSS is used to improve the group decision-making process, enabling group members to collaborate more effectively. It facilitates the generation, organisation and evaluation of ideas, as well as the management of information relevant to decision-making.
Advantages of a GDSS:
- Encourages participation: It allows all group members to contribute at the same time, preventing a few from dominating the discussion.
- Improve your preparation: It requires better planning of work sessions, which can help to achieve the set objectives.
- Equal access: Every member has the opportunity to participate at any time, which optimises the use of the information provided.
- Focus on key issues: It helps to focus the group’s attention on the most important issues and to avoid distractions.
- Ease of use: They are generally easy to learn and use, and accessible to users with varying levels of computer literacy.
Disadvantages of a GDSS:
- Technological dependence: It requires suitable hardware and software, which can be a barrier if the necessary resources are not available.
- Potential communication problems: Although the aim is to improve communication, misunderstandings can arise if online interactions are not handled properly.
- Resistance to change: Some members of the group may be reluctant to adopt new technologies or working methods.
GDSS procedures:
The procedures involved in a GDSS comprise several phases that guide the decision-making process:
- Brainstorming: The aim is to draw up a diverse list of possible solutions to a specific problem, whilst encouraging creativity.
- Organising ideas: The ideas generated in the previous phase are refined and organised.
- Evaluation of ideas: The level of consensus on the options presented is determined.
- Analysis and exploration: This ensures that all members of the group have a shared understanding of the ideas and decisions.
- Information management: The data and documents generated during the sessions are managed for future use.