@thesis{thesis, author={Aprilia Nabilla Dwi and Kusuma Dine Tiara and Luqman Luqman}, title ={SISTEM PAKAR DIAGNOSA PENYAKIT PADA IKAN GUPPY MENGGUNAKAN METODE FORWARD CHAINING}, year={2022}, url={http://156.67.221.169/5842/}, abstract={High market demand causes guppy fish farmers to be able to produce guppy fish of good quality so that national guppy fish production can compete in the international market. The problem that occurs in guppy fish cultivation is in maintaining guppy fish, namely disease. The main factor is that sometimes before the potential broodstock quality can be cultivated, it has already died due to disease. The causes of diseases that attack Guppy fish are fungi, parasites, fungi, and stress. This study aims to make cultivators know and understand and make it easier to diagnose any diseases that attack guppies by looking for facts according to the symptoms that appear by making an expert system application for diagnosing guppy fish using the forward chaining method. Based on the system that has been created, it is tested using the root mean square error method with an accuracy value of 0.02. where the smaller the value, the closer the prediction is to be correct.} }