E-service architecture selection based on multi-criteria optimization
PROFES'07 Proceedings of the 8th international conference on Product-Focused Software Process Improvement
| Hi-index | 0.00 |
In this paper we propose a solution for optimizing (web service)business workflow response times through dynamic resource allocation.On-the-fly monitoring is combined with a novel workflow modelingalgorithm that discovers critical execution paths and builds "dynamic" stochastic models in the associated "critical graph." One novelcontribution of this work is the ability to naturally handle parallelworkflow execution paths. This is essential in applications whereworkflows include multiple concurrent service calls/paths that need to be "joined" at a later point in time. We discuss theautomatic deployment of on-the-fly monitoring mechanisms withinthe resource management mechanisms. We implement, deployand experiment with a proof of concept within a generalized web services business process (BPEL4WS/SOAP) framework. In the experimental setup we explore and show the naturaladaptation to changing workflow conditions and appropriateautomatic re-allocation of resources to reduce execution times.