RANCANG BANGUN SISTEM PAKAR DIAGNOSA GEJALA GANGGUAN KEJIWAAN MENGGUNAKAN METODE FUZZY TSUKAMOTO (Studi Kasus: Rumah Sakit Khusus Jiwa H. Mustajab)

Psychiatric disorders remain taboo in society. According to dalys calculations, cases of mental disorders in Indonesia continue to rise every year. Some of the factors that contribute to an increasing incidence of mental disorders in Indonesia are psychosocial stress where circumstances or events cause a change in one's life. Indonesia still has a very limited mental health facility, the Mustajab inpatient clinic located in Purbalingga. A goal to be achieved in the study is to build a system of experts that a diagnosis can use to support patients' treatment at a clinic. System was created using the Tsukamoto fudging method of calculating. The method of data collection used in this study is interviews, observation, doccumentation and library studies. As for the method of system development used in the research, the waterfall method composes the communication, planning, modelling, construction and deployment stages. Systems of experts tested it with the black box test and got results consistent with the test plan. The findings of the study are a system of diagnoses that is hoped to sustain the treatment of mental patients at the major h. Mustajab inpatient clinic.