| In recent years, the booming development of On-line education represented by web-based Courses not only provides the learners with rich on-line learning resources but also reforms the original way of presenting, teaching and evaluating courses. Surveying the present web-based Courses, we've found that most of the designs put more emphasis on teaching contents than on evaluating process. Moreover, such evaluation system, which includes more self-tests or unit-tests than the evaluation of such factors beyond knowledge as learning attitude and methods in the studying process. This is unfair for some students and can't contribute to developing and exercising the learners'ability of self-reflection and self-learning."Portfolio assessment", which is a typical"process evaluation"approach, will track and record the whole learning process. The introduction of"portfolio assessment"into the evaluation system of web-based courses can add to the evaluation module more attention to the learners'emotion and attitude, which serves as reference data for teachers in guiding the learning process. In this way, it will be easy to monitor and control the quality of the students'learning more effectively and hence, ensure the quality of web-based teaching and learning.This paper combines theoretical study with practical exploration. It tries to set forth the patterns in developing eportfolio, based on the definition and characteristics of eportfolio and the analysis of several relevant concepts, and with reference to the actual practices in developing web-based courses evaluation modules. And then, by means of prototype, this paper sets as an illustration the application of eportfolio to an web-based courses"Digital Photography". Finally, this article sets forth several limitations to the application of eportfolio to web-based courses and puts forward suggestions for future development. We hope to provide some useful reference to the design and development of evaluation system in present-day web-based courses. |