Sistem Pakar Diagnosa Penyakit Lambung Berbasis Website Menggunakan Metode Forward Chaining & Certainty Factor

Gastric disease is a that cannot be underestimated, because if left unchecked it can result in other diseases appearing and also cause death not treated immediately. Diseases of the stomach caused by an inappropriate diet, burden on mind infections bacteria. The little public knowledge early symptoms gastric author's background to create system helps obtaining information, consultation or initial treatment for without having meet person. ability expert who diagnose implemented into application system. methodology used making Disease Diagnosis Expert System Website waterfall, namely analysis, design, implementation testing. testing phase focuses functional specifications program. In this System, uses Forward Chaining method as reasoning Certainty Factor calculate results yield trust. Hasil shows website perform its function diseases. test are obtained from inputs made visitors selecting options have been given then will get results.