This article focuses on the Cooperative Remotely Accessible Learning (CORAL) system to promote cooperative constructive distance learning currently under development at National Chiao Tung University in Taiwan. The CORAL system is a collective and collaborative project intended to integrate four major components in concept and construction: an interactive learning environment, educational foundations and implications, domain knowledge, and research efforts. The CORAL system provides the first comprehensive and networked courseware written in Chinese. The development process of CORAL including analysis, design, development, and evaluation is reported. Research issues are also addressed.