Enhancement of the Uniframe Resource Discovery Service

摘要

Unlike the traditional way of software development, the software realization of large scale Distributed Computing Systems (DCS) could be achieved through the Component Based Software Development (CBSD) approach. To develop DCS using the CBSD approach, appropriate software components are to be discovered from the network and these components need to be integrated. UniFrame is a research project that provides a unified framework to create spontaneous and high-confidence distributed computing systems using distributed heterogeneous components. UniFrame uses the UniFrame Resource Discovery Service (URDS) for the discovery of components that are deployed on the network. As the discovered components are utilized to form DCS, the component discovery service should be comprehensive and sophisticated to discover the appropriate components. The research of this thesis enhances the existing URDS architecture, in terms of the performance of the component discovery process and the quality of the components discovered. It also customizes the component discovery process by the incorporation of profiling at different levels of the URDS architecture. A prototype reflecting various enhancements is implemented and experimented with. The experimental analysis using the prototype indicates the benefits of the enhancements carried out in this thesis.