Abstract:
Transportation sector is facing consequent car failure problems which in turn leads to other
risks and damages. Car failure problem is a challenge of repairing of car components
processes that necessitates the development of knowledge base. The main objective of this
study is to develop a knowledge base system for car failure problem so as to diagnosis and
repair the car failure problem properly. The study was conducted on three selected garages
in Jimma town. Development of knowledge base system can highly provide a chance in
assisting mechanics for failure diagnosis and training purposes. Additionally, the system
captured valuable knowledge from domain experts and stored the knowledge accurately. The
developed car failure diagnosis knowledge base system paves the way of effective experts’
knowledge storage and transfer. The prototype was developed by SWi-PROLOG software
and the performance of the prototype was evaluated both by test cases and user acceptance
testing. The development of knowledge base system supports car failure problem diagnosis in
effective and efficient way and additional future work is expected from different scholars and
researchers in area of knowledge base system application in other car components.
