Dss
- 1. c h a p t e r 13 DECISION SUPPORT SYSTEM GDSS E S S (E I S) 13.1 © 2002 by Prentice Hall
- 2. LEARNING OBJECTIVES • DIFFERENTIATE DECISION- SUPPORT SYSTEMS (DSS) FROM GROUP DECISION-SUPPORT SYSTEMS (GDSS) • DESCRIBE COMPONENTS OF DSS & GDSS * 13.2 © 2002 by Prentice Hall
- 3. LEARNING OBJECTIVES • DEMONSTRATE HOW DSS & GDSS ENHANCE DECISION-MAKING • DESCRIBE CAPABILITIES OF EXECUTIVE SUPPORT SYSTEMS (ESS) • ASSESS BENEFITS OF ESS * 13.3 © 2002 by Prentice Hall
- 4. MANAGEMENT CHALLENGES • DECISION-SUPPORT SYSTEMS • GROUP DECISION-SUPPORT SYSTEMS • EXECUTIVE SUPPORT SYSTEMS * 13.4 © 2002 by Prentice Hall
- 5. DECISION SUPPORT SYSTEMS (DSS) MANAGEMENT LEVEL COMPUTER SYSTEM COMBINES DATA, MODELS, USER - FRIENDLY SOFTWARE FOR SEMISTRUCTURED & UNSTRUCTURED DECISION MAKING * 13.5 © 2002 by Prentice Hall
- 6. DECISION SUPPORT SYSTEM • MODEL DRIVEN DSS: Uses models for what-if and other analysis • DATA-DRIVEN DSS: Allows extraction, analysis of information from databases * 13.6 © 2002 by Prentice Hall
- 7. DECISION SUPPORT SYSTEM DSS DATA EXTERNAL TPS DATA BASE DSS SOFTWARE SYSTEM MODELS USER INTERFACE OLAP TOOLS DATAMINING TOOLS USER 13.7 © 2002 by Prentice Hall
- 8. DECISION SUPPORT SYSTEM • TPS: Transaction processing system • MODEL: Representation of a problem • OLAP: On-line analytical processing • USER INTERFACE: How user enters problem & receives answers • DSS DATABASE: Current data from applications or groups 13.8 * © 2002 by Prentice Hall
- 9. DECISION SUPPORT SYSTEM • DATA MINING: Technology for finding relationships in large data bases for prediction • DSS SOFTWARE SYSTEM: Tools for data analysis • SENSITIVITY ANALYSIS: “What-if” questions about changes in model factors 13.9 © 2002 by Prentice Hall
- 10. DECISION SUPPORT SYSTEM APPLICATIONS: • SUPPLY CHAIN MANAGEMENT • CUSTOMER RELATIONSHIP MANAGEMENT • SIMULATING BUSINESS SCENARIOS * 13.10 © 2002 by Prentice Hall
- 11. DECISION SUPPORT SYSTEM • GEOGRAPHIC INFORMATION SYSTEM (GIS): Software to display digital maps • WEB-BASED DSS: Available on Internet for decisions, information, software • CUSTOMER DSS (CDSS): System supports buying decisions of customers 13.11 © 2002 by Prentice Hall
- 12. DECISION SUPPORT SYSTEM EXAMPLES: • GENERAL ACCIDENT INSURANCE: Customer buying patterns, fraud detection • BANK OF AMERICA: Customer profiles • FRITO-LAY: Price, advertising, promotion selection * 13.12 © 2002 by Prentice Hall
- 13. DECISION SUPPORT SYSTEM • BURLINGTON COAT FACTORY: Store location, inventory mix • KEYCORP: Targeting direct mail marketing customers • NATIONAL GYPSUM: Corporate planning & forecasting * 13.13 © 2002 by Prentice Hall
- 14. DECISION SUPPORT SYSTEM • SOUTHERN RAILWAY: Train dispatching and routing • TEXAS OIL & GAS: Evaluating drilling sites • UNITED AIRLINES: Flight scheduling, passenger demand forecasting * 13.14 © 2002 by Prentice Hall
- 15. Comparison of DSSs and MISs 13.15 Principles of © 2002 by Prentice Hall
- 16. Comparison of DSSs and MISs 13.16 Principles of © 2002 by Prentice Hall
- 17. GROUP DECISION-SUPPORT SYSTEM (GDSS) INTERACTIVE COMPUTER-BASED SYSTEM FACILITATES SOLUTION OF UNSTRUCTURED PROBLEMS BY DECISION MAKERS WORKING AS GROUP * 13.17 © 2002 by Prentice Hall
- 18. Group Decision Support System 13.18 Principles of © 2002 by Prentice Hall
- 19. GDSS ENHANCED DECISION MAKING ALLOWS: Improved pre-planning • Increased participation • Open, collaborative atmosphere • Idea generation free of criticism • Evaluation objectivity • Idea organization & evaluation * 13.19 © 2002 by Prentice Hall
- 20. GDSS ENHANCED DECISION MAKING ALLOWS: Setting priorities & decision making • Documentation of meetings • Access to external information • Preservation of organizational memory * 13.20 © 2002 by Prentice Hall
- 21. TOOLS OF GDSS • ELECTRONIC QUESTIONNAIRES • ELECTRONIC BRAINSTORMING • IDEA ORGANIZERS • QUESTIONNAIRE TOOLS • TOOLS FOR VOTING, SETTING PRIORITIES * 13.21 © 2002 by Prentice Hall
- 22. TOOLS OF GDSS • STAKEHOLDER IDENTIFICATION & ANALYSIS TOOLS • POLICY FORMATION TOOLS • GROUP DICTIONARIES * 13.22 © 2002 by Prentice Hall
- 23. ELECTRONIC MEETING SYSTEM (EMS) COLLABORATIVE GDSS: Uses information technology to make group meetings more productive facilitates communication decision making * 13.23 © 2002 by Prentice Hall
- 24. EXECUTIVE SUPPORT SYSTEMS (ESS) STRATEGIC INFORMATION SYSTEM DESIGNED FOR UNSTRUCTURED DECISION MAKING THROUGH ADVANCED GRAPHICS AND COMMUNICATIONS * 13.24 © 2002 by Prentice Hall
- 25. EXECUTIVE SUPPORT SYSTEMS • DRILL DOWN: ability to move from summary to lower levels of detail • Designed for specific needs of CEO • Extensive support staff • Executive has 24 hour per day ability to examine, control progress throughout organization * 13.25 © 2002 by Prentice Hall
- 26. EXECUTIVE SUPPORT SYSTEMS BENEFITS: • FLEXIBILITY • ABILITY TO ANALYZE, COMPARE, HIGHLIGHT TRENDS • GRAPHICS HELP EXPLORE SITUATION • MONITOR PERFORMANCE • TIMELINESS, AVAILABILITY OF DATA ALLOWS PROMPT ACTION * 13.26 © 2002 by Prentice Hall
- 27. EXECUTIVE SUPPORT SYSTEMS USES IN A DIGITAL FIRM: • BUSINESS INTELLIGENCE: Info on salespeople, distributors, retailers • MONITORING BUSINESS PERFORMANCE: Balanced scorecard shows perspectives of customers, internal processes, learning, growth • ENTERPRISE WIDE REPORTING & ANALYSIS 13.27 * © 2002 by Prentice Hall
- 28. Summary • 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 13.28 Principles of © 2002 by Prentice Hall