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Difference between DSS & ESS


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Difference between DSS & ESS

  1. 1. Decision Support Presented by- DEEPAK SHARMA Deepak Sharma 1
  2. 2. Decision Support • Decision Making and Information Systems -Types of decisions, examples - TPS, MIS, DSS - Executive Support Systems •Comparison of DSSs and MISs Deepak Sharma 2
  3. 3. Types of Decisions Deepak Sharma 3
  4. 4. TPS – Transaction Processing Systems • Basic business systems that serve the organization’s operational level • Input: Transactions, events • Processing: Sorting, listing, merging, updating • Output: Detailed reports, lists, summaries • Users: Operations personnel, supervisors TPS database Deepak Sharma 4
  5. 5. MIS – Management Information Systems •Serve management level; provide reports and access to company data •Input: Summary transaction data, high-volume data, simple models •Processing: Routine reports, simple models, low-level analysis •Output: Summary and exception reports •Users: Middle managers TPS database Deepak Sharma 5
  6. 6. MIS – Management Information Systems Deepak Sharma 6
  7. 7. DSS – Decision Support Systems • Serve management level with data analysis for making decisions • Input: Low-volume data or massive databases, analytic models, and data analysis tools • Processing: Interactive, simulations, analysis • Output: Special reports, decision analyses, responses to queries • Users: Professionals, staff managers Other Data Other Data TPS database Deepak Sharma 7
  8. 8. Overview of a Decision-Support System Figure 12-3 Deepak Sharma 8
  9. 9. DSS – Voyage Estimating System Deepak Sharma 9
  10. 10. Selected DSS Applications Deepak Sharma 10
  11. 11. Executive Support Systems Other Data Other Data TPS database • Provide communications and computing environment that serves the organization’s strategic level • Input: External and internal aggregate data • Processing: Graphics, simulations, interactive • Output: Projections, responses to queries • Users: Senior Managers Deepak Sharma 11
  12. 12. Executive Support Systems Deepak Sharma 12
  13. 13. Putting Decision Support All Together The 4 Major Types of Information Systems Deepak Sharma 13
  14. 14. Comparison of DSSs and MISs Deepak Sharma 14
  15. 15. Summary Management Information Systems(MIS) - These systems access, organize, summarize, and displayed information for supporting routine decision making in the functional areas. Decision support system (DSS) - an organized collection of people, procedures, software, databases, and devices working to support managerial decision making Group decision support system (GDSS) - also called a computerized collaborative work system, consists of most of the elements in a DSS, plus software needed to provide effective support in group decision-making settings Executive support systems (ESSs) - specialized decision support systems designed to meet the needs of senior management Deepak Sharma 15
  16. 16. Thank you Deepak Sharma 16