Abstract
The meaning of knowledge of sufficient important that it defines a major branch of philosophy-epistemology, "the branch of philosophy that studies the nature of knowledge, its presuppositions and foundations, and its extent and validity." Epistemology has traditionally defined knowledge as justified true belief or warranted belief, although those terms apply only to what is known as prepositional knowledge. Polanyi clearly views explicit and tacit knowledge as fundamental, essential, and inseparable components within the overall process of knowing. This paper provides a virtual reality-based design review and job training system for advanced manufacturing skill, which is composed of the explicit and tacit knowledge transfer system using synchronized multimedia and the knowledge internalization system using portable virtual environment. In our proposed system, the education content is displayed in the immersive virtual environment, whereby a trainee may experience the virtual site operations. Provided that the trainee has gained explicit and tacit knowledge of advanced manufacturing through the multimedia-based knowledge transfer system, the immersive virtual environment catalyzes the internalization of knowledge and also enable the trainee to gain tacit knowledge before undergoing on the job training at the actual operation site.