Explain what are the models used in DSS. Compare and contrast the “what-if” and goal-seeking modes of DSS use. Explain the relationship among the three principal components of a DSS. Relate the principal classes of DSS to the problems that call for DSS as

MS PowerPoint 4.0 Presentation MS PowerPoint 4.0 Presentation MS PowerPoint 4.0 Presentation MS PowerPoint 4.0 Presentation 1. Discuss the types of problems that can be solved with the assistance of decision support systems DSS.

2. Explain what are the models used in DSS.

3. Compare and contrast the “what-if” and goal-seeking modes of DSS use.

4. Explain the relationship among the three principal components of a DSS.

5. Relate the principal classes of DSS to the problems that call for DSS assistance.

MS PowerPoint 4.0 Presentation MS PowerPoint 4.0 Presentation MS PowerPoint 4.0 Presentation

6. Specify three levels of DSS technology.

7. Identify and compare the three approaches to building a DSS.

8. Define group decision support systems GDSS and specify their main features.

9. Define executive information systems EIS and describe what can be accomplished using them.

10. Specify the main features of EIS.

When Should You Use the Decision Support Approach? When Should You Use the Decision Support Approach? • Decision Support Systems DSS – Interactive information systems – Analytical Models – Access to Databases – These systems support the decision making process – DSS are flexible – Personal DSSs may be developed » End User tools – Organizational DSSs are used throughout the enterprise When Should You Use the Decision Support Approach? When Should You Use the Decision Support Approach? • The Problems that DSSs Help Solve – The principal domain is support of decision making » Semistructured problems • Needing Computer Support » Unstructured problems • Providing factual grounding » An ill-structured problem contains both elements of semistructured and unstructured problems Capabilities of Decision Support Systems Capabilities of Decision Support Systems • A model is a representation – Developed for a specific purpose – An abstraction – A simplification – Represents relationships Intelligence Design Choice Implementation Look for Problem or Opportunity Define and Analyze the Problem to Be Solved Develop Alternative Solutions Select a Satisfactory Solution Implement and Track the Solution Review Previous Steps Capabilities of Decision Support Systems Capabilities of Decision Support Systems • Scenario Generation and Goal Seeking With a DSS

1. What-If Mode- Developing scenarios for solution with the assistance of information systems DSS