The effects of parallel processing on update response time in distributed database design
ICIS '00 Proceedings of the twenty first international conference on Information systems
On the impact of network latency on distributed systems design
Information Technology and Management
Communications of the ACM - E-services: a cornucopia of digital offerings ushers in the next Net-based evolution
A location model for web services intermediaries
A location model for web services intermediaries
Introduction to web services architecture
IBM Systems Journal
Price competition with service level guarantee in web services
Decision Support Systems
Business modeling for service ecosystems
Proceedings of the International Conference on Management of Emergent Digital EcoSystems
Cloud computing - The business perspective
Decision Support Systems
Web services based cross-organizational business process management
APWeb'05 Proceedings of the 7th Asia-Pacific web conference on Web Technologies Research and Development
Optimal service composition via agent-based quality of service
MIWAI'11 Proceedings of the 5th international conference on Multi-Disciplinary Trends in Artificial Intelligence
Towards optimal service composition upon QoS in agent cooperation
International Journal of Computational Science and Engineering
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The Web services technology allows for the distribution and integration of loosely coupled software components over the Internet. This paper studies the optimal pricing and location strategy of a Web service intermediary (WSI), which offers a time-sensitive composite Web service. We first derive the optimal solution in a linear city model and then extend the analyses to the more general unit circle model. Our analyses show that that the optimal strategy is determined by delay cost, integration cost, and prices of the constituent Web services. We find that the WSI is optimally located between the Web service providers and charges a penetration price if the delay cost is low. In addition, there could be multiple optimal locations for the WSI if the Web service providers are far away from each other.