QUESTION

This Case Study is to evaluate your understanding how to select appropriate expert system.

Encik Firdaus is a mechanic who has opened an old car workshop since 2010. This year, he

decides to expand his car workshop business. For this purpose, he needs to hire someone who

is knowledgeable and experienced in repairing old cars. However, the salary for such an

individual must be too high. One day he read on the Internet about Expert System (ES) can be

implemented for diagnosing cars' problems and suggesting a solution. In this case, he needs

more information about this Expert System (ES). You as an IT software developer, propose

an appropriate ES model to help Encik Firdaus. Your proposal should include some of the

following.

1. Introduction

Give an introduction of expert system. What is expert system? What are advantages of

expert system?

(5 marks)

2. Problem Background

Identify and elaborate the problem in this case study.

(5 marks)

3. Objectives

What purpose of this proposal and generally explain how the expert system can help

his business?

(5 marks)

4. Proposed Expert System (ES).

a. Proposed an ES model appropriate with his business practice. Explain why

you choose this model compares to the other model.

(5 marks)

b. Describe the cycle of the proposed ES model. Explain what he has to do in

each cycle.

(5 marks)

c. What are the challenges he has to face by choosing the proposed model?

(5 marks)

5. Case-Based Reasoning (CBR)

After have some discussions, Encik Firdaus decides to use Case-Based Reasoning (CBR)

model in his expert system to diagnose car problem in his workshop. Help him, and give

him your own example how to calculate the similarity value by determining the following

items.

a. THREE (3) car models as Case 1, Case 2 and New Case;

b. A problem and AT LEAST FIVE (5) features to be compared with Case 1

and Case 2;

c. Importance and similarity weightage for each feature;

d. Calculate similarity value for New Case vs Case 1, and New Case vs Case 2;

e. Do justification for the result

(20 marks)

KNOWLEDGE BASED SYSTEM