Disease Diagnosis System Using Certainty Factor

The use of traditional medicine has been growing rapidly lately. One of the medicinal plants that have been developed especially in East Kalimantan is Dayak onion plant (Eleutherinepalmifolia (L.) Merr). Dayak onion concoctions have also been used by various groups of Dayaks as an alternative medicine for various diseases, and also to find out the possibility of people who being affected by the disease and how to process Dayak onion ingredients, an disease diagnosis system is needed that is able to diagnose the disease and how to process Dayak onion ingredients to get proper treatment. This study uses ten diseases that can be diagnosed, namely Hemorrhoid Disease, Nephrolithiasis, Diabetes Mellitus, Hypertension, Hepatitis, Tuberculosis, Bronchitis, Sinusitis, Uric Acid, and Rheumatism. The method used is Certainty Factor; the result of this research is a web-based expert system that is used to assist people in diagnosing diseases that can be cured by Dayak Onion.