The Role of Case Method and Team Based Projects in Bridging the Vocational Skill Gap in Appropriate Technology Design

Backgorund: The gap between graduate competencies and the ever-evolving demands of industry remains a major challenge in vocational education. Although many vocational curricula have adopted competency-based standards, their implementation often fails to develop complex 21st-century skills, such as critical thinking, creativity, communication, and collaboration. Purpose This study aims to investigate the need for a competency-based training (CBT) model that integrates the Case Method and Team-Based Project (TBP) in Appropriate Technology Design learning. Method A quantitative descriptive approach was used to analyze students' perceptions of the contribution of both approaches to job skill development. Data were collected from 493 Mechanical Engineering Education students enrolled in the Appropriate Technology Design course and analyzed using Structural Equation Modeling (SEM) through path analysis. Results The results indicate a hierarchical relationship within the 4C (Critical Thinking, Creativity, Communication, and Collaboration) framework, where critical thinking and creativity influence communication, while communication has a strong influence on collaboration. Creativity has both direct and indirect influences on collaboration, while the influence of critical thinking on collaboration is fully mediated by communication. The model exhibits high predictive power, explaining 86.6% of the variation in communication and 82.9% of the variation in collaboration. Conclusion The findings reveal that critical thinking and creativity function as foundational cognitive competencies that enhance communication skills, while communication serves as the key mechanism linking individual cognitive capacities to effective collaboration in appropriate technology design projects. The study provides empirical evidence that the synergy between the Case Method and Team-Based Projects constitutes an effective pedagogical pathway for bridging the vocational skills gap by integrating cognitive development with structured collaborative experiences. However, the study is limited by its reliance on self-reported competency measures and its focus on the 4C framework, suggesting the need for future longitudinal research incorporating additional factors such as learning motivation, team leadership, and collaborative culture.