Expert System of Diagnosing Koi’s Fish Disease by Certainty Factor Method

Koi's fish is one of the most popular animals in the World. In Indonesia, but this is not by way of treatment and handling fish diseases, you can overcome them by using expert systems in diagnosing koi fish diseases. This research develops expert system of application to diagnose koi fish disease by using certainty factor method. The system works by performing diagnoses based on the symptoms experienced by the fish and will result in the diagnosis. It is hoped that this research can be developed by expert system method, the results will reach the truth.