| The management of distributed Web Service registries is an important issue in the context of a Web Services based distributed system. The current registry management systems and proposals for distributed service registries are investigated. Through this investigation, it was discovered that none of the existing proposals satisfy all the requirements of scalability, availability, ease of management and flexibility in terms of the management of the registries. Therefore, a Meta-Directory based registry management system is introduced in this thesis. The system uses distributed Meta-Directory nodes for the management of the service registries. The system also provides flexibility as the routing used for inter-connecting the distributed Meta-Directory nodes can be selected during deployment to accommodate system requirements. The distributed Meta-Directory architecture enhances system performance by allowing the user to choose an appropriate network model, during configuration, based on the system state such as bandwidth available and maximum allowable delay per query message. |
