Users who will use the system can be car owners, car drivers, inexperienced mechanical engineer, expert mechanical engineer and interested users, and students. Car owners may want to have the knowledge to know how to maintain their car in good condition. Drivers must have the knowledge to deal with the problem as fast as possible. Inexperienced mechanical engineer can use the system to gain more knowledge and improve their work performance. Experienced mechanical engineer can use the system to help them make better and faster decision making. Interested users who may not have their own car can use the system.
