An information system is a set of interacting components – people, procedures, and technologies – that together collect, process, store, and distribute information to support control, decision-making and management in organizations. The information system contains information about the organization itself, for example, the state of its internal operations, and about its environment, for example, information about customers, suppliers, and competitors. Without an information system an organization would not survive. This does not mean that the information system must use information technologies in the form of computers and communication networks. There are other forms of information system. Organizations have always needed information systems, although the formal aspects of these information systems would have been implemented using paper-based filing systems in the pre-IT era.
Typically, information systems serve four major organizational levels: operational level, knowledge level, management level, and strategic level.
Information systems can be classified into six categories: executive support systems (ESS), management information systems (MIS),decision-support systems (DSS), office information systems (OIS), knowledge work systems (KWS), and transaction processing systems (TPS).
Systems today are built to increase efficiency and save money but they have also become vitally important for staying in business and may even be a source of competitive advantage.
The Tata Group is a multinational conglomerate based in Mumbai, India. In terms of market capitalization and revenues, Tata Group is the largest private company in India. It has interests in steel, automobiles, information technology, communication, power, tea and hotels. The Tata Group has operations in more than 85 countries across six continents and its companies export products and services to 80 nations. The Tata Group comprises 98 companies in seven business sectors,... [continues]
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