1. TOPIC: Course Name Informational Technology Management Course Code
PGHRM2C006T
Course In Charge
Anjali Pathania

2. Contents Concept of Expert System Expert System defined
Characteristics of Expert System
Components of Expert System
Creating an Expert System
Advantages & Limitations
Few Real Life Applications
Case: EXOWHEM

3. Concept of Expert System
Any Computer software that:
Emulates human expert
Deals with small, well defined domains of expertise
Is able to solve real-world problems
Is able to act as a cost-effective consultant
Can explains reasoning behind any solutions it finds
Should be able to learn from experience.

4. Expert System Defined According to Turban:
An expert system is a system that employs human knowledge captured in a computer to solve problems that ordinarily require human expertise
According to Pigford & Braur:
A computer program that emulates the behaviour of human experts who are solving real-world problems associated with a particular domain of knowledge.

5. Characteristics of Expert System
According to Pigford & Baur
- Inferential Processes
Uses various Reasoning Techniques
- Heuristics
Decisions based on experience and knowledge

6. Components of an Expert System
Knowledge
Base
User
Interface
USER
Inference
Engine

7. Creating an Expert System
1. Knowledge Acquisition : Extracting knowledge and methods from the expert 2. Knowledge Representation : Reforming knowledge/methods into an organised form

8. Advantages Transfer of knowledge Capture of scarce expertise
Superior problem solving
Reliability
Work with incomplete information

9. Limitations Knowledge is not always readily available
Expertise can be hard to extract from humans
Each expert’s approach may be different, yet correct
Hard, even for a highly skilled expert, to work under time pressure
Users of expert systems have natural cognitive limits
ES work well only in a narrow domain of knowledge

10. Few Real Life Applications
Domain Function 1. Auditor Business Assist auditor in assessing bad debts 2. Crib Computer Fault Advice faults in Diagnosis Hardware and software 3. Dip meter Advisor Oil Exploration Help determining oil remaining in well 4. Mycin Medicine Diagnose blood infections and suggest treatment

11. CASE: EXOWHEM: Expert System on Wheat

12. THANK YOU