Abstract
The development of digital learning media often requires repeated implementation of similar features such as quiz systems, video players, module navigation, and progress trackers in different applications. This study proposes a reusable prefab-based architecture on the Unity platform by applying the principles of Component-Based Software Engineering (CBSE). The developed architecture consists of seven core reusable components: Lobby, Module Layout, Material, Video Player, Quiz, Progress Tracker, and Main Setting Component. The study uses a Research and Development (R&D) approach with a modified ADDIE model and is implemented using Unity 2022 LTS and the C# programming language. Evaluation is carried out through the implementation of component libraries in five different learning media applications. The results show that most components have a high reuse ratio, a maintainability index above 70, and low coupling dependencies, thus supporting system modularity and reusability. This study shows that a reusable prefab-based architecture can be an effective solution in the development of modular, flexible, and scalable digital learning media.
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