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Decision Support Systems vs. Management Information Systems

Decision Support Systems vs. Management Information Systems. Special Topic. Review: Types of Information Systems. TPS PCS ECS DSS MIS EIS. Examples. What type of IS is WebEX ? Blackboard? iTunes? Web for Students MapInfo Excel. MIS. Help Transform Data  Information

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Decision Support Systems vs. Management Information Systems

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  1. Decision Support Systems vs. Management Information Systems Special Topic

  2. Review: Types of Information Systems • TPS • PCS • ECS • DSS • MIS • EIS

  3. Examples • What type of IS isWebEX? • Blackboard? • iTunes? • Web for Students • MapInfo • Excel

  4. MIS • Help Transform • Data Information • Manages the Information • Provides Reports • Reports: • Graphs & Charts- easy to understand • Averages & Summaries • more simple • more relevant

  5. DSS • Unique Components • Knowledge-base • Modeling • Scenario modeling • Decision modeling • Mathematical modeling • Simulations • Physical (real-world) modeling

  6. DSS sub-types • A communication-driven DSS supports more than one person working on a shared task; • A data-driven DSS emphasizes access to and manipulation of internal company data and, sometimes, external data. • A document-driven DSS manages, retrieves, and manipulates unstructured information in a variety of electronic formats. • A knowledge-driven DSS provides specialized problem-solving expertise stored as facts, rules, procedures, or in similar structures. • A model-driven DSSemphasizes access to and manipulation of a statistical, financial, optimization, or simulation model

  7. Key Differences: MIS vs DSS MIS • Routine decisions • Monthly • Weekly • Daily • Operational • Easy to automate • Often the best choice is obvious DSS • Non-routine decisions • Often unique problems • Requires data + human knowledge/wisdom • Subjective • Best choice is very unclear

  8. Different emphasis MIS • Performance info • More feedback driven • How are we doing? DSS • Analyze specific problems

  9. Format Differences MIS • Periodic Reports • Pre-specified, fixed reports DSS • Interactive Reports • Flexible, adaptive reports

  10. Methodoloyg Differences MIS • Processing of data DSS • Analytical modeling + Knowledge base

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