多媒體講解呈現播放器於PDA行動裝置之設計及製作

Abstract

網路基礎建設的普遍，包括有線網路、無線網路，造就了隨處可上網，隨處可學習的環境，於是數位學習漸漸朝向行動學習蓬勃發展。藉由這些網路基礎建設，使網際網路資源無遠弗屆、隨手可得，學習者可使用PDA透過網路基礎建設，擷取多媒體講解呈現之學習教材，加以閱讀及學習，以達行動學習之效果。 多媒體講解呈現應用於學習教材，吸引力強。一般都經由計算能力比較強的PC來錄製多媒體講解呈現。若要給PDA觀看的多媒體講解呈現，則內容提供者須要額外製作PDA版本的多媒體講解呈現，增加內容提供者的額外負擔。 學習者已可以利用現成PC端的多媒體講解呈現播放器，觀看並學習。本研究探討多媒體講解呈現內容協調至PDA端的機制，使PC端的多媒體講解呈現可以用最少的成本而可以在PDA端觀看及學習。 本研究實作一個PDA多媒體講解呈現播放器，將PC端播放器的程式移植至PDA端，在移植的過程中，探討PC端與PDA端的系統資源、程式語法及支援程式庫的差異，比較後實作之，使PC端可觀看的多媒體講解呈現之學習教材，同樣可以在PDA端上觀看，以期達到學習教材隨處可得，隨時可學習的理想。

The popularity of network infrastructure, including wired、wireless network resulting ubiquitous networking and ubiquitous learning environment. So Electronic Learning has been developed prosperously toward Mobile Learning. By the mature network infrastructure and Internet resource, users can easily access variable contents from website. Learners can use PDA via Internet infrastructure to acquire the multimedia lecturing contents for learning through wireless manner. While multimedia lecturing presentation was applied to learning contents, that is attractive. In general, these multimedia lecturing contents are usually produced under PC which has much more computing power. For PDA readers, content providers have to produce multimedia lecturing contents for PDA version and that costs some extra overhead. Learners can use the existing player of multimedia lecturing presentation under PC to read and learn. In this research, we discuss the mechanism of multimedia lecturing content adaptation from PC to PDA such that multimedia lecturing contents from PC can be read and learned by using PDA, too. In this research, we implement a player of PDA version for the multimedia lecturing content creation tool. We port the player programs of PC version into PDA version. During the porting, we discuss the differences of system resource, program grammar, and supportive libraries between PC and PDA, then bridge and implement these differences into PDA player. Make the multimedia lecturing learning material from PC can also be read from PDA, expectedly, achieve the goal of ubiquitous learning material and ubiquitous learning.