The design of load-balancing LMS based on decomposition structure

Abstract

This study brings up a learning management system with load-balancing function that allows for the integration of learning resources and balance of network traffic. The system consists of the learning management system (LMS) for processing basic data, learning data and learning records of learners, and the learning content management system (LCMS) for managing and storing course resources. The Web service cross-platform distribution configuration of this study provides common communications between systems and enhances the capability of integrating learning resources. The architecture of the system ensures a load-balancing functionality for LCMS of different domains. The connection program embedded in the PC of the learner via LMS connects to the LCMS broker server for access to required teaching materials from each LCMS. The LCMS with the minimum load is then selected from suitable LCMS as the source of the teaching materials. Since the SCORM (sharable course object reference model) standard integrates teaching materials and platforms using JAVA script, cross-domain scripting issues may occur when the learning system and course resources are stored in subsystems of two different domains. This study proposes a SCORM learning environment by creating a cross-domain server with URL-rewrite technology to provide a solution for this issue.