Assessing the Feasibility of Android-Based Learning Media for Common Rail Diesel System Maintenance: Perspectives of Media and Content Experts

Adhitya Muhammad  Firdaus; Andri Setiyawan; Abdurrahman; Deni Fajar  Fitriyana; Ebenezer  Bonyah; Rachmad Syarifudin  Hidayatullah; Guilermo  Bautista, Jr.

Authors

Adhitya Muhammad Firdaus Universitas Negeri Semarang Author
Andri Setiyawan Johannes Kepler University Linz Author
Abdurrahman Universitas Negeri Semarang Author
Deni Fajar Fitriyana Universitas Negeri Semarang Author
Ebenezer Bonyah Akenten Appiah Menka University of Skills Training and Entrepreneurial Development Author
Rachmad Syarifudin Hidayatullah Universitas Negeri Surabaya Author
Guilermo Bautista, Jr. University of the Philippines-Diliman Author

Keywords:

Android-based learning media, Vocational education, Expert validation, Mobile learning, Common rail diesel maintenance

Abstract

This study evaluates the feasibility of Android-based learning media developed to support the teaching of Common Rail diesel fuel system maintenance in vocational education. The need for mobile and interactive instructional tools is critical in Indonesia’s vocational schools, where traditional teaching methods are often insufficient to address the complexity of modern automotive systems. The learning media was designed using the ADDIE model and assessed through expert validation involving both content and media specialists from academia, industry, and government. Content experts evaluated the accuracy, completeness, and instructional value of the material, while media experts assessed its usability, navigation, and audiovisual quality. The validation process revealed that the content received a feasibility score of 85%, categorized as “Very Feasible,” and the media design scored 80%, indicating it is “Feasible” for instructional use. Suggestions from experts were implemented, including refining learning objectives, expanding assessment items, improving narration clarity, and enhancing user interface functionality. Although the media platform limited certain features such as image zooming, overall usability and pedagogical alignment remained strong. These findings confirm that Android-based learning media is a viable tool for enhancing instructional effectiveness in vocational automotive programs. The study contributes to the growing body of research supporting mobile learning in technical education, highlighting the role of expert validation in ensuring media quality. It recommends further empirical testing with students to evaluate learning outcomes and suggests future integration with technologies like augmented reality and AI-based customization. This work demonstrates the potential of mobile learning to modernize vocational education and better prepare students for industry demands.

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