Automating the Provisioning of Application Services with the BPEL4WS Workflow Language

摘要

We describe the architecture and implementation of a novel workflow-driven provisioning system for application services, such as multi-tiered e-Commerce systems. These services need to be dynamically provisioned to accomodate rapid changes in the workload patterns. This, in turn, requires a highly automated service provisioning process, for which we were able to leverage a general-purpose workflow language and its execution engine. We have successfully integrated a workflow-based change management system with a commercial service provisioning system that allows the execution of automatically generated change plans as well as the monitoring of their execution.