<![CDATA[The development of information technology drives the transformation of medical record management into Electronic Medical Records (EMR), including in the rehabilitation services for patients with mental disorders, which require continuous recording of psychological conditions, therapy progress, and service history. At the Yayasan Ketenangan Jiwa dan Hati (YKJH), the recording process is still done manually, which has the potential to cause recording errors, delays in information access, and difficulties in managing patient data. This research aims to design an RME interface that meets the needs of users in mental health patient rehabilitation services and to evaluate the usability level of the prototype using the System Usability Scale (SUS). The research applies the Waterfall method, which includes requirements analysis, system design, prototype implementation, and usability evaluation. Data were collected thru observation, interviews, and literature review. The resulting prototype provides features such as login, dashboard, patient registration, patient data management, diagnosis, SOAP notes, prescriptions, medical history, reports, and user management. Usability evaluation was conducted on five respondents consisting of two administrative staff, two medical personnel, and one foundation manager thru scenarios using the main features of the system, followed by filling out the SUS questionnaire. The evaluation results obtained an average score of 84.0, which falls into the Excellent and Acceptable categories. The contribution of this research is to produce an RME design tailored to the needs of administration and rehabilitation services for patients with mental disorders, as well as to provide a usability evaluation as a basis for further system development. The research results indicate that the prototype has a good level of usability in the initial evaluation stage, although further testing with a larger number of users and in a direct operational environment is still needed.]]>
