A Decision Support System

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Executive summary
The purpose of this report is to illustrate the most important type of information system for business planning.
This report discusses five of the main information systems and the role they play in the business environment,.
An executive information system (EIS) is a type of management information system that facilitates and supports senior executive information and decision-making needs. It provides easy access to internal and external information relevant to organizational goals. ( Power, D. J.).
A Decision Support System (DSS) is a computer system designed to provide assistance in determining and evaluating alternative courses of action. It acquires data from the mass of routine transactions of a firm, analyses it with
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Managers can manipulate the DSS to show them the projected results of various options the management may take going forward. DSS use information from TPS and MIS within the company as well as external knowledge bases e.g current stock exchange prices or prices of competing products when coming to their decisions. They are extremely useful as they give an unbiased view of how a company can hope to progress given alternative courses of action taken by the managers, e. g cash flow projections, budgeting
Executive Information Systems (EIS) go beyond the capabilities of conventional DSS. They provide information and support for strategic long term planning in a company using the most advanced and sophisticated IT. EIS are used to help solve novel problems within a company or help decide if a novel opportunity for growth or change in the company should be grasped or not.
Businesses themselves are typically divided up into three different levels of management
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(2004). This quote highlights how EIS are beneficial to higher management in planning ahead for a business firm. EIS are becoming an important tool of top-level control in many organizations. They help an executive spot a problem, an opportunity, or a trend.
According to Gupta and Malik, Senior managers use EIS to make decisions. EIS serve the strategic level of the organization addressing non routine decisions requiring judgement, evaluation and insight. EIS are designed to incorporate data about external events such as new tax laws or competitors but they also draw summarized information from internal MIS and DSS. They sieve through and compress critical data, which ultimately cuts down the time and energy required to gain information of use to executives. EIS employ the most advanced graphics software and can deliver graphs and data from many sources immediately to a senior executive’s office or to a
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