Abstract
We have created a new advanced prototype system that creates an online “e-Learning on demand” environment with unique time-free, space-free and remote distance multimedia features. We propose a format and learning materials’ structure for constructing a one-source, multi-use material distribution system based on semantic transcoding technology. This technology enables us to provide a seamless material distribution process suitable to various learning environments. We confirmed the practicality of the electronic learning materials for lectures in a mobile environment as well as the effectiveness of one-source, multi-use electronic learning materials through various experiments which include wired note PC, wireless PDA and mobile phone.