Research on Sharing Method of Instructional Object for IT Education

当我们复用软件时，软件单元的粒度是非常重要的。应用框架和组件是实现软件重用的有效粒度。在电子学习领域，基于共享内容对象参考模型（SCORM）和开放式学习管理系统（LMS）设计开发了教学材料。我们已经为电子学习系统开发了一个基于存储库的集成开发环境，称为REBECCA。用于电子学习的应用程序框架、教学对象和教学法对象存储在存储库中。存储库由CORBA实现。开发了基于SCORM2004的教学对象；教学对象有三个不同的层次：初级、中级和高级。适应性电子学习系统为个体学习者的理解提供了适应性教学对象。我们还设计了一个重载编辑器的实现方法，重载编辑器是一个开源的SCORM工具。对SCORM2004的测序功能有一定的参考价值。Web服务是分布式环境中REBECCA的一种有效技术。

When we reuse software, granularity of the software unit is very important. Application framework and components are effective granularity for reusing software. In e-Learning domains, instructional materials based on SCORM (Sharable Content Object Reference Model) and open LMS (Learning Management System) are designedand developed.We have already developed a repository based integrated development environment for e-Learning system which is called REBECCA. Application framework for e-Learning, instructional objects, and pedagogy objects are stored in the repository. The repository is implemented by CORBA.We developed instructional objects which are based on SCORM2004; the instructional objects have three different levels: beginner level, intermediate level, and advanced level. Adaptive e-Learning systems provide adaptive instructional objects for individual learners' understanding.We also designed an implementing method for using Reload Editor, which is an open source SCORM tool. It is useful for sequencing function of SCORM2004. Web service is an effective technology for REBECCA in a distributed environment.