<![CDATA[Algorithm and Programming practicum requires a uniform execution environment so that students can run code and participate in practicum activities consistently. Differences in devices, operating systems, and software versions often cause installation problems, inconsistent execution results, and difficulties in preparing practicum requirements. This study implements a Docker-based containerized runtime in a web-based interactive practicum platform using the Rapid Application Development (RAD) method, covering requirements planning, system design, development, implementation, and testing. The platform provides registration, login, practicum material management, a web-based code editor, real-time answer checking, and practicum result reports. Implementation and testing results using black box testing show that all 13 core features, verified through 63 test scenarios covering both the student and lecturer roles, ran according to the defined success criteria (100% suitable). These results indicate that Docker can provide an isolated, stable, and accessible practicum environment without requiring manual software installation on students’ devices, thereby supporting a more structured and consistent programming practicum process.]]>
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