Information Systems

Published on June 2016 | Categories: Types, Research, Arts & Architecture | Downloads: 24 | Comments: 0 | Views: 762
of 3
Download PDF   Embed   Report

Describes informtion systems, theirfeatures an roles in the organization.

Comments

Content

An information system is an arrangement of people, data, processes, interfaces, networks and technology that are integrated for the purpose of supporting and improving the day to day operations in a business as well as fulfilling the problem solving and decision making information needs of business managers. TRANSACTION PROCESSING SYSTEM A transaction processing system is a set of information which processes the data transaction in database system that monitors transaction programs. Its essence is that it manages data that must be left in a consistent state. A transaction processing system is mostly used at operational level, usually creates detailed reports of daily transactions or future transactions and reports are generated are useful only to lower level managers. One functional area of a business consists of a transactional processing system. The main features of a transaction processing system are It serves the most elementary day to day activities of an organization. It is mostly for predefined and structured tasks Supplies data for higher level management decisions It is often the critical level for the organization. It is characterized by inflexibility that it wants every transaction to be processed in the same regardless of the time of day.

DECISION SUPPORT SYSTEMS This is an integrated set of computer tools that allow a decision-maker to interact directly with computers to create information useful in making semi and unstructured decisions. These are complex decisions like mergers, acquisitions, plant expansion, new product and marketing. The system provides necessary information in decision makers. It is an interactive information system that rely on an integrated set of user friendly hardware and software tools to produce and present information that is targeted to support management in decision to choose between alternatives by ranking them automatically basing on decision maker criteria. The main features include, It aids decision-makers in the decision-making process.

It is designed to address semi and unstructured decisions. Supports decision-makers at all levels but most effective at tactical and strategic level. It is interactive, user-friendly system that the decision-maker uses with little assistance from MIS professionals. Provides the mechanism to enable a rapid response to a decision-makers request for information. It facilitates communication between levels of management. It has capability to interface with corporate database. EXECUTIVE INFORMATION SYSTEM Executive information system provides the executives with information for decision support for pursuing the attainment of a competitive advantage. It focuses on meeting the strategic information needs of top management. It provides the executives with the facts and figures of middle managers. It enables managers to get access to key internal and external data. The features of executive information system include; It is tailored to individual executives’ user. Extract, filter, compress and tract critical data. It contains powerful software for supporting the unstructured which are found in strategic management. Executive information systems have access to the tireless reliable expertise to support the decision making in specialized areas. It uses sophisticated graphic displays which are user friendly and allows executives to interact with the system and even display the output information in an understandable form using graphics such as histogram, charts, trend graphics etc. It allows flexible data manipulation and presentation. It enables the managers to move around the different sets of data in the corporate database. It provides summarized data captured from the organization main system. It can allow the executive to view the accounting records, sales etc.

The role of ESS in the organization is; Helps them in making the right decision. This is because executives often face information overload and must be able to separate the chaff from wheat in order to make the best decision.

As technology advances, ESS are able to link data from various sources both internal and external to provide the amount and kind of information executives find useful. It provides timely delivery of company summary information. Provides better understanding of information. Filters data for time management Provides system for improvement information tracking.

Sponsor Documents

Or use your account on DocShare.tips

Hide

Forgot your password?

Or register your new account on DocShare.tips

Hide

Lost your password? Please enter your email address. You will receive a link to create a new password.

Back to log-in

Close