The AYAT organization (Aparatur Yakin Amalan Takziah) in Jorong Pasia Laweh, Nagari Pasia Laweh, Palupuh District manages various socio-religious community activities, including takziah, yasinan, tahlilan, Friday-night prayers, and commemoration activities at seven, forty, and one hundred days as well as haul. Currently, all management processes are still carried out manually; the organization has no information system, no member database, and no digital activity schedule. Activity information is delivered orally, causing some residents to forget the schedule and attendance at follow-up activities to decline. Documentation and historical records of activities are also not well organized. This study aims to design a web-based AYAT information system that assists administrators in managing member data, activity schedules, activity documentation, and information delivery to the community. The study employs the design thinking method, which consists of the empathize, define, ideate, prototype, and evaluation stages, and stops at the system design stage. Data were collected through observation, interviews, documentation, and literature study. The study produces a requirements analysis, use case, activity, sequence, and class diagrams, an entity relationship diagram, a flowchart, wireframes, a prototype, a database design, and an interface design. The analysis yields twelve functional requirements covering member and administrator data management, eight types of activity schedules, activity history, announcements, reports, and user profiles. The design is ready to serve as a reference for further research on system implementation.