This paper proposes a web-based multimedia authoring and presentation framework to facilitate online pieces creation, sharing, and reuse in e-learning applications. Through the easy-to-use interface of the customized tools, students are allowed to create their own pieces online and then share with friends in a very easy way. To make the presentation of the piece more interesting, the authoring tool provides the capturing mechanism that records all significant authoring steps as synchronization information: temporal and spatial relations between composed objects. Synchronization module in rendering function enables users (author and receiver) to replay a vivid, animated multimedia presentation in a form of as close as possible to the original sense. A prototype has been implemented in a website especially designed for young student art learning, which has being conducted by the Military of Education, Taiwan, since 2003. The experimental results show that this hands-on experience in creating and sharing indeed benefits the efficacy of web-based e-learning.
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