Information system

Information system

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  Introduction to InformationSystem Ashima Wadhwa Assistant Professor (IT) Amity University , Noida
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  TOPICS FORTHEDAY • InformationConcepts • Data, Information, and Knowledge • The Characteristics of Valuable Information
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  Information Concepts • Data,information, and knowledge • Data: Raw facts • Information: Collection of facts organized in such a way that they have additional value beyond the value of the facts themselves • Process: Set of logically related tasks performed to achieve a defined outcome • Knowledge: Awareness and understanding of a set of information
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  Data, Information, andKnowledge
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  Valuable Information • Valuableinformation • Can help people and their organizations perform tasks more efficiently and effectively • Can help managers decide whether to invest in additional information systems and technology
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  Invaluable Information If informationis not accurate or complete • People can make poor decisions, costing thousands, or even millions, of dollars Information can be of little value to the organization • If information is not relevant, not delivered to decision makers in a timely fashion, or too complex to understand
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  What Is anInformation System?
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  Input, Processing, Output, Feedback •Input • Gathering and capturing raw data • Processing • Converting or transforming data into useful outputs • Output • Production of useful information, usually in the form of documents and reports • Feedback • Output that is used to make changes to input or processing activities
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  Manual and Computerized InformationSystems • An information system can be: • Manual • Example: Developing patterns and trends on graph paper for stock analysis • Computerized • Example: Using program trading to track the market and trade large blocks of stocks when discrepancies occur
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  Computer-Based Information Systems • Singleset of hardware, software, databases, telecommunications, people, and procedures configured to collect, manipulate, store, and process data into information
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  Computer-Based Information Systems (continued) •CBIScomponents : • Hardware: Computer equipment used to perform input, processing, and output activities • Software: Computer programs that govern the operation of the computer • Database: Organized collection of facts and information • Telecommunications: Electronic transmission of signals for communications
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  Computer-Based Information Systems (continued) •CBIScomponents : • Networks: Connect computers and equipment in a building, around the country, and around the world • Internet: World’s largest computer network • People: Manage, run, program, and maintain the system • Procedures: Strategies, policies, methods, and rules for using a CBIS
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  Questions ??