厂补办补颈在华师
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该文档详细介绍了华中师范大学在厂补办补颈项目上的发展历程、主要工作和成果，包括厂补办补颈系统的本地化、二次开发及应用。项目组从2006年起成立，经过多次重要的里程碑，实现了多个工具的汉化、性能优化和新工具的开发。此外，文档还探讨了技术、应用和服务层面的问题及未来的思考，强调了对厂补办补颈在中国的应用模式和产物化的需求。
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![刘三女牙 华中师范大学教育信息技术工程研究中心 Sakai 项目负责人 [email_address] 2008 年 3 月 1 日 Sakai 在华师](https://image.slidesharecdn.com/sakai-091109020026-phpapp02/85/Sakai-1-320.jpg)
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厂补办补颈在华师
- 1. 刘三女牙 华中师范大学教育信息技术工程研究中心 Sakai 项目负责人 [email_address] 2008 年 3 月 1 日 Sakai 在华师
- 2. 主要内容 我们与 Sakai Sakai 的本地化 Sakai 的二次开发与应用 我们的思考
- 3. 一 . 我们与 Sakai
- 4. 1.1 华师 Sakai 项目组 2006 年初开始跟踪 Sakai 项目 2006 年 4 月正式组建 Sakai 项目研发团队 项目组规模：从 2006 年至今，华师 Sakai 项目组参与人员不断扩大，由最初的 1 个小组 4 人到现在的 2 个小组 15 人。 项目组所跟踪的 Sakai 版本：经历版本从 Sakai212 到目前最新的 Sakai241 Sakai 会议：分别于 07 年 6 月和 12 月参加了第七届和第八届 Sakai 国际会议
- 5. 1.2 华师 Sakai 项目组大事记 2006 年 5 月， Sakai 第一本地化产物诞生； 2006 年 8 月， Sakai 内核分析工作完成； 2006 年 9 月， Sakai 代码重构工作完成； 2006 年 10 月，基于 Sakai 内核的二次产物开发工作取得成功，并正式开始相关产物的开发工作； 2007 年 1 月， Sakai 基金会访问华师 Sakai 项目组 2007 年 6 月，参加 Sakai 基金会在荷兰举办的年度会议； 2007 年 11 月，加入 Sakai 基金会，成为 Sakai 基金会大学合作伙伴； 2007 年 12 月，参加 Sakai 基金会在美国举办的年度会议； 2008 年 1-2 月，筹办 本次 Sakai 在中国举办的首次会议。
- 7. 主要工作内容 汉化 个性化外观 bug 修复 代码重构 性能测试与调优 系统集成 本地化应用与服务
- 8. 2.1 汉 化 主要包括两个方面的汉化工作： Sakai 系统本身和帮助文档的汉化 Sakai 本身支持中文，但 Sakai 在中文支持方面主要存在两个问题：汉化不完全和部分翻译不完全符合国人的表达习惯 因此，我们汉化工作主要包括： 对未汉化部分予以彻底汉化 对已汉化部分用语的修正
- 9. 2.2 个性化外观（ UI 设计）
- 10. 2.3 Bug 修复 目前看来， Sakai 系统 Bug 的主要来源有 3 种： １、系统对中文编码的支持。举例：如通知以邮件的形式发送时，用户接受到的邮件中会出现乱码，我们对于此类的问题进行了修复。 ２、中文操作系统所带来的问题。举例：我们修复了一些运行在中文操作系统服务器上因为时间问题产生的 bug ，如 samigo 和 section 。 3 、工具本身所隐含的逻辑 Bug 。举例：如 samigo 多选题四个答案都正确时，会引发异常；又如服务器重启后， jforum 论坛工具会产生数据丢失问题等，我们对类似的问题进行了逐一修复，特别是我们认为很关键的工具。 ……
- 11. 2.4 代码重构 这方面的工作主要包括：代码的组织结构、包结构、重写等多方面的工作。
- 12. 2.5 性能测试与调优 我们开展的工作，主要包括 4 个方面： 1 、组织人员对我们重点予以关注的工具进行性能测试； 2 、整合不同的工具集，进行集成测试； 3 、通过调整系统使用环境与配置参数以增强系统性能 4 、系统的负载均衡：配置 Cluster 并对数据库进行性能调优
- 13. 2.6 系统集成 一方面，将 Sakai 集成到其它系统，就 Sakai 与其它应用系统之间的集成提出了完整的解决方案，并在实践中予以了应用，如：实现了 Sakai 与华师校园门户的统一身份认证，完成与数字校园门户的集成。 另一方面，将其它应用系统集成到 Sakai 系统，如：完成与 LAMS （学习活动管理系统）的本地化集成，并开展应用。
- 14. ?
- 15. 2.7 本地化应用与服务 整合本地资源，积极探索可行的本地化应用与服务模式 应用举例： 高校开放课程在线教学服务 国际文化交流学院语言类课程在线教学服务 在线考试服务 实验室科研项目管理 自主招生远程面试服务 ……
- 16. 2.8 本地化应用与服务案例演示 案例类型：提供课后辅助性师生协作学习服务 服务时间： 2007 — 2008 学年度第一学期 课程名称：面向对象程序设计 Java 服务对象：刘三女牙老师与华师文学院新闻系 2006 级 Java 传媒班 30 位学生
- 17. ?
- 18. 使用情况
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- 20. 三 . 二次开发与应用
- 21. 主要工作 内核的解析 数据库支持的扩展 对已有工具的改进 新工具的开发 系统集成 基于 Sakai 内核的产物开发
- 22. 3.1 内核解析 轻量级 Java EE 架构 内核 工具
- 23. 3.2 对数据库支持的扩展 对数据库的支持扩展 DB2 Sql Server2000
- 24. 3.3 对已有工具的改进 通过改进原有工具，实现工具级的功能扩展 samigo 考试工具 : 改进了考试管理功能，增加了对完型填空、阅读理解等组合题型的支持 melete 课程单元工具 : 增加了对学习流程的控制功能 content 资源库工具：扩展了对 SCORM , CELTS 等标准的支持 ……
- 25. 3.4 新工具的开发 根据具体的应用，按需在系统内核之上开发各种新的工具，比如： 在线课程展示 在线课堂自动创建 经费管理 资源交易 BI 报表支持 ……
- 26. 新工具示例
- 27. 3.5 应用整合 系统内的应用整合 系统间的应用整合
- 28. 3.6 基于 Sakai 内核的产物开发 课程在线 可视化教学服务平台 数字教育资源超市 在线考试平台 科研项目管理系统
- 29. 3.6.1 产物成果 1 ：课程在线教学服务平台
- 30. 3.6.2 产物成果 2 ：数字教育资源超市
- 31. 3.6.3 产物成果 3 ：可视化教学服务平台
- 32. 3.6.4 产物成果 4 ：在线考试系统
- 33. 3.6.5 产物成果 5 ：科研项目管理平台
- 34. 四 . 我们的思考
- 35. 思考的出发点 技术层面 应用层面 服务层面
- 36. 4.1 技术层面 第一个问题： Sakai 系统与应用服务器 目前， Sakai 与 Tomcat 应用服务器的耦合度非常高。她优势是都是开源，部署简单。 尽管在其它应用领域中，有使用 Tomcat 服务器来支撑百万级用户的实例，但中国的大部分用户目前对开源产物的性能和稳定性存在担忧。 为此，我们认为要想 Sakai 得以大范围的应用，必须做的事情是（二者取其一，或都要做）： 就目前的软件版本的大规模应用提供完善的、高性能的软硬件解决方案 增加对其它应用服务器的支持，如 Webshpere 、 Weblogic 等
- 37. 4.1 技术层面（续） 第二个问题： Sakai 性能的测试与维持 现在， Sakai 系统上的工具集较为丰富，但从其出现与演化来看，每个工具主要关注点都在功能，而性能方面则考虑太少。 从 Sakai 系统来，目前急需三个方面的性能指标：内核的性能指标、单个工具的性能指标以及系统整体的性能指标（或基于特定工具集的性能），对于大规模的公司级应用来说，这些参数非常重要。 与此同时，如何确保新增工具的性能以及与系统整体性能的协调，也是一个重要的问题。
- 38. 第三个问题： Sakai 对标准化教育资源的支持 目前， Sakai 拥有相对完善的资源存储与管理系统，并在进一步改进。 但是， Sakai 在针对标准化教育资源的支持方面迈的步伐很慢 就国内来说，我们急需要 Sakai 能支持基于 SCORM 标准和 CELST 标准的教育资源，主要包括： 数字化教育资源的大规模存储 标准化资源的注册、搜索、交易等 标准化资源的使用环境（运行时环境） …… 4.1 技术层面（续）
- 39. 第四个问题： Sakai 与 SOA Sakai 目前有支持 Web Service 的模块， Sakai 的内核也是基于服务的方式构建。 但是针对 Sakai 系统级和工具级与 SOA ，特别是基于 SOA 的互操作方面缺乏强有力的内核和工具支持 在 Sakai 社区中，有关 Sakai 与 SOA 的讨论也甚少，这方面资料也不多。 4.1 技术层面（续）
- 40. 第五个问题： Sakai 系统的未来演化 从目前来看， Sakai 系统已经针对 E-Learning 开发并配置了大量工具，拥有丰富的在线教、学功能。 从长远的角度来看，我们考虑是否可以基于 Sakai 来研发出一种专门针对 E-Learning 的 WEB OS ，将其发展成为一种普适的、功能强大的在线学习平台。 如果可以如此定位， Sakai 就有可能成为 E-Learning 领域的 Linux ，那么除了要关注应用服务器的问题，我们还要重新回头来看 Sakai 内核是否能够胜任此项重用，我们还需要哪些基本的服务和核心的工具，以及如何做。 4.1 技术层面（续）
- 41. 第六个问题： Sakai 与其它领域的要求 Sakai 最初是为 E-Learning 的目的所研发，目前绝大多数应用实践也是应用于该领域。 但是，从纯技术的角度来看， Sakai 的内核和许多工具完全可以被应用到其它领域。 正是基于这种考虑，目前我们基于 Sakai ，分别开展了针对 E-Learning 、 E-Research 、 E-Administration 、 E-Resources 等方面的研究、开发与应用。 4.1 技术层面（续）
- 42. 第一个问题： Sakai 在中国的应用模式 由于 Sakai 进入中国的时间太短，目前还需要实践并讨论如何在中国应用以及用好 Sakai ，如： Sakai 能被中国的用户所接受吗？ 什么样的应用模式是合适的？ 应用范围（基础教育？高等教育？职业教育？等） 应用规模（局部、区域、国际等） …… 4.2 应用层面
- 43. 4.2 应用层面（续） 第二个方面：产物化 如果期望 Sakai 或基于 Sakai 的产物获得广泛地应用，必须要有基于 Sakai 的成熟产物 由此会衍生出许多的问题： 产物化的内容？ 由谁来从事产物化工作？ 如何实现产物的推广与应用？ ……
- 44. 个性化定制 培训服务 技术支持 Sakai 社区建设与维护 …… 4.3 服务层面
- 45. Thank You !