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Information Systems

computing ESSENTIALS. 11. Information Systems. computing ESSENTIALS. Competencies. Organizational structure Information flow Support systems Office automation Knowledge work systems. computing ESSENTIALS. Functions Within Organizations. All organizations have basic functions

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Information Systems

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  1. computing ESSENTIALS 11 Information Systems

  2. computing ESSENTIALS Competencies Organizational structure Information flow Support systems Office automation Knowledge work systems

  3. computing ESSENTIALS Functions Within Organizations • All organizations have basic functions • Accounting • Marketing • Human resources • Production • Research and development

  4. computing ESSENTIALS Management Levels • People who plan, lead, organize within the organization • Supervisors • Oversee operational matters • Middle management • Implements long term goals • Top management • Strategic planning

  5. computing ESSENTIALS Information Flow • Based on needs of management • Top level management • Middle management • Supervisors • Based on needs of organization

  6. computing ESSENTIALS Information Flow: Supervisors • Primarily vertical • Provide status Reports

  7. computing ESSENTIALS Information Flow:Middle Managers • Vertical • Horizontal

  8. computing ESSENTIALS Information Flow:Top Managers • Vertical • External • Horizontal

  9. computing ESSENTIALS Computer-Based Information Systems • Transaction processing system (TPS) • Management information system (MIS) • Decision support system (DSS) • Executive support system (ESS)

  10. computing ESSENTIALS Transaction Processing Systems (TPS) • Keep track of routine operations and records • An essential TPS is accounting • Accounting TPS activities • Sales orders • Accounts receivable • Inventory control • Accounts payable • Payroll • General ledger

  11. computing ESSENTIALS Management Information Systems (MIS) • Produce standardized reports • Periodic • Exception • Demand • Use databases created by TPS • Integrate databases across departments

  12. computing ESSENTIALS Decision Support Systems (DSS) • Flexible tool for dealing with unanticipated questions • Analyzes data • Reports are not in fixed format • Generally easy to use • Analytical capabilities come from decision models

  13. computing ESSENTIALS DSS Parts • User • Makes decisions • System software • Operating system • Data • Internal from the organization • External from the organization • Decision models • Strategic, tactical, operational

  14. computing ESSENTIALS Executive Support Systems (ESS) • Designed for top management • Easy to use • Present information in condensed view • Access organization’s databases • Access data external to the organization

  15. computing ESSENTIALS Other Information Systems • Types of information workers • Data workers • Knowledge workers • Office automation systems • Support data workers • Manage documents, scheduling, etc. • Knowledge work systems • Support knowledge workers • Create information in their area

  16. computing ESSENTIALS A Look to the Future • Information overload • E-mail is a major source • Some tips: • Be selective • Remove • Protect • Be brief • Stop spam • Don’t respond

  17. computing ESSENTIALS

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