Decision Support Systems – DSS (definition)
Decision Support Systems (DSS) are a specific class of computerized information system that supports business and organizational decision-making activities. A properly designed DSS is an interactive software-based system intended to help decision makers compile useful information from raw data, documents, personal knowledge, and/or business models to identify and solve problems and make decisions.
- Accessing all of your current information assets, including legacy and relational data sources, cubes, data warehouses, and data marts
- Comparative sales figures between one week and the next
- Projected revenue figures based on new product sales assumptions
- The consequences of different decision alternatives, given past experience in a context that is described
Typical information that a decision support application might gather and present would be:
Distinguish DSS from MIS
The DSS and MIS models are very similar. Both consist of a database, report writing software, and mathematical models. In the MIS model, the users are called organizational problem solvers, whereas in the DSS model there are two types of users- individual problem solvers and other group members. The DSS model also includes a third category of software- groupware, which establishes communications link among the problem solvers and between the problem solvers environmental settings a groupware.
Examples
1. The best example of decision support systems include high-level summary reports or charts and allow the user to drill down for more detailed information.
2. A specific example concerns the Canadian National Railway system, which tests its equipment on a regular basis using a decision support system. A problem faced by any railroad is worn-out or defective rails, which can result in hundreds of derailments per year. Under a DSS, CN managed to decrease the incidence of derailments at the same time other companies were experiencing an increase.
References
The DSS and MIS models are very similar. Both consist of a database, report writing software, and mathematical models. In the MIS model, the users are called organizational problem solvers, whereas in the DSS model there are two types of users- individual problem solvers and other group members. The DSS model also includes a third category of software- groupware, which establishes communications link among the problem solvers and between the problem solvers environmental settings a groupware.
Examples
1. The best example of decision support systems include high-level summary reports or charts and allow the user to drill down for more detailed information.
2. A specific example concerns the Canadian National Railway system, which tests its equipment on a regular basis using a decision support system. A problem faced by any railroad is worn-out or defective rails, which can result in hundreds of derailments per year. Under a DSS, CN managed to decrease the incidence of derailments at the same time other companies were experiencing an increase.
References
- Power, D.J. A Brief History of Decision Support Systems DSSResources.COM, World Wide Web, version 2.8, May 31, 2003
- O’Brien, J (1999). Management Information Systems – Managing Information Technology in the Internetworked Enterprise (in English). Boston: Irwin McGraw-Hill. ISBN 0071123733.
- Management Information System 7th Edition.
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