Types of DSS:
There are four basic types of DSS. These are data analysis systems, information analysis systems, accounting systems, and status inquiry systems. These systems are described in brief here:
Data analysis systems
Data analysis systems are developed using simple data processing tools and business rules. These systems rely on comparative analysis, application of formula, and use of algorithms. Such systems are generally used for conducting cash flow analysis and funds flow analysis.
Information analysis systems
Information available to the management needs to be analyzed to arrive at a result. The analyzed data is printed in the form of reports for the perusal of the decision-maker. By going through these reports, the decision-makers can take decisions. Such information analysis systems are used for generating sales analysis reports, market analysis reports, etc.
Accounting systems
Though accounting systems do not contribute directly to decision making, they can be of great value in tracking business functions. These systems track information regarding cash, inventory, and personnel. In most of these systems, predetermined standards are used. A comparison is made between the actuals and the standards. The results of such comparison help the management exercise control in the organization and arrive at a decision.
Status inquiry systems
Some decisions in the operational and middle management level do not require any elaborate computations, analysis, selection, etc. These decisions can be taken easily if the current status is known. Railway reservations systems are an example of status inquiry systems. The system displays the status based on availability.
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