Modeling Learning Contents Based on Web Services

This paper present an interaction model for effectively sharing, authoring and composing e-learning courses. The model supports real-time communication between learners. First we put forward the concept of learning services based on web services, which enable integration of the learning objects and other learning resources. Then we propose a method to create new aggregate learning services or composite learning services by combining component learning services and other web services. Finally cooperation and interaction methods between learning services are proposed for effective interaction between learners. It resolves problems of customization, sequencing, reuse and duplication of learning objects when authoring complicated learning courses and sharing learning resources on different platforms.

1 INTRODUCTION

E-learning implies an important learning approach in modem era. It is the key problem for E-learning that how to reuse learning resources and how to organize the kernel logic of courses better. In order to fulfill the needs of learning resources sharing and reusing, many international organizations has planned a serious of influencing international standards including LMS (Learning Management System) by AICC(The Aviation Industry CBT Committee), IMS(Instructional Management Systems) by IMS Global Learning Consortium[2] and the Learning Object by IEEE/LTSC(IEEE's Learning Technology Standards Committee), etc.