數位學習（e-learning）是網際網路上一種重要的應用，世界各國無不積極在進行數位學習科技的研究，數位學習的模式有很多，在學習平台上有集中式、分散式，在學習內容上有文字、圖片、影像、聲音，在學習活動進行上有同步教學及非同步教學等。
本論文中針對同步教學活動設計具有互動合作學習的軟體平台，主要目地是可以提供即時互動，亦可藉由聲音、文字、圖片和影像等媒介，經由網路同步傳輸，和其他學習者共同分享知識及經驗。其軟體架構模型根據同步教學會發生的事件組成要素延伸而成。利用此架構實際建構出即時投影片播放、即時影音等應用功能，這些應用功能可以讓網路教學的品質提升，也讓學習者有一種新的學習模式。

E-learning is an important application in the internet. The technology of e-learning is being intensively studied in each country in the world. There are many different models in e-learning such as the centralized model and the distributed model. The contents of e-learning include texts, pictures, images and voices. In terms of teaching activity of e-learning, there are synchronized teaching and asynchronous teaching.
For the design of synchronized teaching activity, this thesis proposes a cooperative and interactive learning model. The main purpose is to offer real-time learning. Through synchronized communication of internet, the proposed model supports every learner shares common knowledge and experience by voices, texts, pictures and images. In light of synchronized teaching model driven by events, the software architecture is designed. Based on the architecture, the application functions of playing slides, images and voices of real time are constructed. The application functions are used to improve the quality of network teaching and also to provide a new learning model for learners.

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