An information system is any combination of information technology and people's activities using that technology to support operations, management, and decision-making. Information systems include transaction processing systems, management information systems, knowledge work systems, and executive support systems. Transaction processing systems focus on basic business systems that process daily routine transactions, while management information systems provide periodic reports and exception reports to support management decisions. Decision support systems directly help decision-making through analytical modeling and exploration of alternatives.

1. INFORMATION SYSTEM

2. What is Information System? Information System (IS) is any combination of information technology and people's activities using that technology to support operations, management, and decision-making. Information technologyis a general term that describes any technology that helps to produce, manipulate, store, communicate, and/or disseminate information. 2

4. maintain data

5. produce reports

6. handle queries

7. handle on line transactions

8. generate reports, and other output.Transformation of data into information is the primary function of information system. 3 What is Information System?

10. Decision Support Systems (DSS)

11. Management Information Systems (MIS)

12. Knowledge Work Systems (KWS)

13. Office Automation Systems (OAS)

16. Reliability . TPS systems are designed to incorporate comprehensive safeguards and disaster recovery (back up) systems.

17. Standardization. Transactions must be processed in the same way each time to maximise efficiency.

18. Controlled Access. Restricted access to the system ensures that employees who lack the skills and ability to control it cannot influence the transaction process. Transaction Processing System (TPS)

19. 7

21. office information systems

22. knowledge management systemsOffice System- Document Imaging This system converts documents and images into digital form so they can be stored and accessed by the computer.

23. 9 Operational Level Tactical Level Purchase Inventory Item Point-of-Sale (POS) System Sales analysis Report MIS DSS Profitability Analysis Report Capital Investment Report General Ledger System Accounting Management information systems are regarded to be a subset of the overall internal controls procedures in a business, which cover the application of people, documents, technologies, and procedures used by management accountants to solve business problems such as costing a product,service or a business-wide strategy. Basically MIS is the extension of Decision Support System (DSS). Management Information System (MIS) Decision Support System (DSS)

24. 10 MIS Periodic reports Pre-specified, generic reports DSS Special reports that may only be generated once May not know what kind of report to generate until the problem surfaces; specialized reports. MIS vs. DSS

25. 11 MIS vs. DSS

30. Designed to the individual

31. Ties CEO to all levels

32. Very expensive to keep up

33. Extensive support staffExecutive Support System (ESS) or Executive Information System (EIS)

34. 15 DSS TPS OperationalManagement Decisions TacticalManagement Decisions StrategicManagement Decisions EIS MIS IS Relationship

35. Next topic: Tools/Concepts for IT support business Nov 30, 2010 16