Chapter 11 – Capabilities of Expert Systems

Document Sample
Chapter 11 – Capabilities of Expert Systems Powered By Docstoc
					Chapter 11 – Specialized Business Information Systems: Artificial Intelligence, Expert Systems, Virtual Reality, and Other Specialized Business Systems
Hands-On Activity 1 – Marketing Management Information Systems Compared with other types of information systems, expert systems offer a number of powerful capabilities and benefits. Expert systems can be used to solve problems in every field and discipline and can assist in all stages of the problem-solving process. Past successes have shown that expert systems are good at strategic goal setting, planning, design, decision making, quality control and monitoring and diagnosis. Use Microsoft PowerPoint to develop a presentation to summarize some of the uses of expert systems. The presentation should consist of a title slide and one slide for each of the uses of an expert system. Save the file as Ch11Expert.ppt

Chapter 11 – Specialized Business Information Systems: Artificial Intelligence, Expert Systems, Virtual Reality, and Other Specialized Business Systems
Hands-On Activity 2 –Rules A rule is a conditional statement that links given conditions to actions or outcomes. A rule is constructed using if-then constructs. If certain conditions exist, then specific actions are taken or certain conclusions are reached. For example: If a certain temperature pattern exist with a given barometric pressure and If certain previous weather patterns over the last 24 hours Then a specific forecast will be made. Use Microsoft Word to create a table with four columns to list two rules. The first column should list the statement, the second column should list the rules, the third column should list the action taken if the output for the rule is true and the fourth column should list the action taken if the output for the rule is false. Save the file as Ch11Rule.doc Statement Rules True Action False Action

Chapter 11 – Components of Expert Systems
Hands-On Activity 3 – Chaining Backward Chaining is the process of starting with conclusions and working backward to the supporting facts. If the facts do not support the conclusion, another conclusion is selected and tested. This process is continued until the correct solution is identified. Forward Chaining starts with the facts and works forward to the conclusions. Consider the expert system that forecasts future sales for a product. With forward chaining, we start with a fact. The table lists five examples of either forward chaining or backward chaining. Copy the table into Microsoft Word and place an X in the column to indicate if the example is a forward or backward chaining example. Save the file as Ch11Chaining.doc Statement The pay raise next year will be 10% If the sales are > 20,000 then consider increasing the number of products ordered If the number of employees < 2,000 then hire more employees The discount on merchandise will be 4% If the stock prices are decreasing then sell the stock Forward Chaining Backward Chaining