摘要：With the rapid development of services computing, services expression, registration and assembly have been partially solved. But for the ultimate goal of services computing, namely on-demand service, it has not been able to achieve by far, especially the active provisioning approach for services resource. Faced with the key issue for requirements-dominated services virtualization, active provisioning of services resource will be focused. Consumer-centric SOA (Service-oriented Architecture) will be systematically investigated with requirements model and distributed requirements elicitation. In this paper, we have established software architecture with personalized active custom for services resource that will select unsatisfactory requirements fragment of customers to dynamically generate custom needs during the services composition. By means of custom preferred provider selection approach designated to push the customization requirements, service providers complete the services resource production and customized products evaluation just in time, and the process will effectively prevent failure of services aggregation and services resource provisioning exceptions occurring. These efforts of the work will effectively promote on-demand services resource provisioning capability. Experiment and prototype have proved the feasibility and effectiveness of the proposed approach.
关键词：services resource provisioning;customer-centric SOA;personalized customization;Web service
