2010 年 27 巻 1 号 p. 128-136
We discuss about sustainability in Web-based education to promote both development and maintenance of contents. We introduce several solutions for the sustainability through a case study in Chitose Institute of Science and Technology. In the present study, we arrange development method using a simple model with a use case of UML (Unified Modeling Language). To construct the basic model, we introduce actors of teachers for the lectures, students for making contents and officers who support to provide the authoring environment and the format for making contents. On basis of this model, we manage a project-based learning, where the actors with two types of students are coordinated under hierarchy structures, and interact with teachers managing through the learning.