Smart SEP：基于Web图形操作记录与回放的在线同步教学平台  

Smart SEP:An Online Synchronized Education Platform Based on Graphical Web Operation Record and Replay

作　　者：陈德健[1,2] 孙艳春[1,2] 黄罡[1,2] 

机构地区：[1]北京大学信息科学技术学院软件研究所,北京100871 [2]高可信软件技术教育部重点实验室,北京100871

出　　处：《计算机科学》2014年第11期31-35,62,共6页Computer Science

基　　金：国家重点基础研究发展规划973资助项目(2011CB302604);国家自然科学基金联合基金资助项目(U1201252);国家自然科学基金项目(61073020);国家高技术研究发展计划863资助项目(2011AA01A202);国家自然科学创新研究群体科学基金(61121063)资助

摘　　要：在Web2.0和云计算的影响下,基于浏览器的在线教学平台发展迅速,在远程教学、课堂教学和协作学习等领域都产生了重大影响。然而,当前的教学平台很少关注基于Web图形的同步教学,它对于教学内容形成过程的展示、师生互动等十分有意义。在分析当前在线教学的3类主要应用背景的基础上,提出了一种基于Web图形操作记录与回放的在线同步教学方法。该方法一方面通过对演示者的操作进行高保真的记录、实时同步到各个观看者的终端并对操作进行自适应的回放,来实现基本的同步教学;另一方面通过交互式的同步控制来保证正常参与者和迟到者都能可靠地、有序地参与到在线教学中。在此基础上,实现了在线同步教学平台Smart SEP(Smart Synchronized Education Platform)并进行了详尽的实例研究,证明了所提方法具有可行性,实现了同步的、动态的、交互的教学过程。Influenced by Web 2.0and cloud computing,online education platforms based on Web browser develop rapidly and have great impact on remote education,in-class teaching and collaborative learning.However,most of current education platforms seldom focus on synchronized education based on Web graphics,which is very important for process displaying and learning interaction on teaching materials.We firstly analyzed three major application fields of current online education,and then put forward an online synchronized education method based on graphical Web operation record and replay.On the one hand,the method supports basic synchronized education by high-fidelity operation record on presenter’s terminal and self-adapting operation replay on audience’s terminal.On the other hand,it also ensures reliable and orderly online education for both normal participants and late-comers by interactive synchronization control.Based on the method,we implemented Smart SEP（Smart Synchronized Education Platform）and gave detailed case study,which performs synchronized,dynamic and interactive education and verifies the feasibility of our method.

关 键 词：WEB图形 记录回放 同步教学 

分 类 号：TP311.5[自动化与计算机技术—计算机软件与理论]