<![CDATA[Data management activities are important activities for every agency. SDN Wadungasri Sidoarjo is one of the primary level formal school institutions in Sidoarjo district. Data collection for students at this school is still done manually by using books or by manual data collection applications on a computer. Manual data management requires a lot of time. For teachers, searching for learning device documents can take 20 to 30 minutes. In this study, a web-based application system will be proposed using the Waterfall model software development method to support student data management activities. The Waterfall model is suitable for use because the application requirements are predetermined prior to system design and implementation. Whereas for designing the system architecture using the Model View Controller (MVC) architecture so that the grouping of system functions is more orderly. In this study, an analysis of unit testing and system validation will be carried out, as well as an analysis of usability and system compatibility. The results of unit testing and validation show that the application meets functional requirements and produces valid test results. The results of usability testing using the task scenario found 98.2% success in the users of Educators and Education Personnel. Whereas usability using the USE questionnaire method has an average result of the feasibility of the usefulness criteria of 98.14%, the ease of use criteria of 96.59%, the ease of learning criteria of 97.13%, and the satisfaction criteria of 95.02%. Application compatibility test results have produced valid test results.]]>
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