Describe a decision-support system (DSS). Give a specific example that illustrates a DSS’s principal components and overall function. What is the difference between a DSS, a group decision-support system, and an enterprise decision-support system?
Decision support systems (DSS) are software-based systems for decision-making intended to help managers by providing large volumes of information gathered from various related information systems involved in institutional business processes, such as transaction processing system, office automation system, etc.Using the analytical models DSS uses the summary information, exceptions, patterns, and trends . A decision support system helps in decision-making but does not necessarily give a decision itself. The decision makers compile useful information from raw data, documents, personal knowledge, and/or business models to identify and solve problems and make decisions.There are two types of decisions - programmed and non-programmed decisions.
Programmed decisions are generaly automated processes, general routine work, where −
decisions that have been taken several times.
decisions that follows some guidelines or rules.
For example, selecting a reorder level for inventories, is a programmed decision.
Non-programmed decisions occur in unusual and non-addressed situations, so −
decisions are made based on the available information.
decisions are based on the manger's discretion, instinct, perception and judgment.
For example, investing in a new technology is a non-programmed decision.
Benefits of DSS
Improves efficiency and speed of decision-making activities.
Increases the control, competitiveness and capability of futuristic decision-making of the organization.
Facilitates interpersonal communication.
Three fundamental components of a DSS architecture are:
Difference between decision support system DSS and group decision support system (GDSS) and enterprise decision support system (EDSS) :
The main difference between DSS and GDSS is the number of people involved in the decision making . The DSS is a tool that gives an individual support on how to compare and weigh certain factors and to make the best possible decision. whereas, GDSS helps a group of people to come up with ideas and decide the best course of action. GDSS has same components as in DSS such as Database, Models, etc. DSS tools and something more whch group needs to work together. However, EDSS is an enterprise approach that applies analytical and rule-based systems to manage and deploy all operational decisions, such as relationships with employees, suppliers and customers.
Describe a decision-support system (DSS). Give a specific example that illustrates a DSS’s principal components and...
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