This study aimed to develop a web-based New Student Admission (PPDB) module integrated into the school information system of SDN Kertajaya 01 to reduce dependence on physical documents and support applicant-data verification. Development followed the SDLC Waterfall model, comprising requirements analysis, design, implementation, testing, and maintenance planning. Requirements were obtained through workflow observation and unstructured interviews with two school operators. The application was implemented using PHP and MySQL. Black Box Testing showed that all five tested functional scenarios produced the expected outputs. User Acceptance Testing involving 32 parents of prospective students yielded 79.38%, classified as very easy according to the interval adopted in this study. A workflow-based comparison indicated a potential estimated service-time reduction of 90.00–91.67%; this value was not obtained through experimental measurement. The PPDB functions were implemented as a module sharing the school portal, role-based access mechanism, administrative dashboard, and internal application database. Final data transfer to Basic Education Data System (Dapodik) remains manual.
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