A Semantics-Based Information Distribution Framework for Large Web-Based Course Forum System

摘要

We propose a novel data distribution framework for developing a large Web-based course forum system. In the distributed architectural design, each forum server is fully equippedwith the ability to support some course forums independently. The forum servers collaborating with each other constitute the whole forum system. Therefore, the workload of the course forums can be shared by a group of the servers. With the secure group communication protocol and fault tolerance design, the new distribution framework provides a robust and scalable distributed architecture for the large course forum system. The forum servers can be settled in anywhere as long as a broadband network connection to Internet is provided. Our experimental performance testing results show that the large forum system is a high performance distributed system with very low communication overhead cost. In addition, all course forums are classified by their teaching content relevance. Relevant course forums can be arranged on the same forum server together. Hence our distribution framework also provides a knowledge-based taxonomic storage solution to build a large digital course teaching material library.