IEEE Internet Computing
Computer
Analysis of interacting BPEL web services
Proceedings of the 13th international conference on World Wide Web
Precise Service Level Agreements
Proceedings of the 26th International Conference on Software Engineering
Tracking time-varying parameters in software systems with extended Kalman filters
CASCON '05 Proceedings of the 2005 conference of the Centre for Advanced Studies on Collaborative research
Synchronizability of Conversations among Web Services
IEEE Transactions on Software Engineering
Architecture-Based Software Reliability Analysis: Overview and Limitations
IEEE Transactions on Dependable and Secure Computing
Analysis of distributed intrusion detection systems using Bayesian methods
PCC '02 Proceedings of the Performance, Computing, and Communications Conference, 2002. on 21st IEEE International
Model checking service compositions under resource constraints
Proceedings of the the 6th joint meeting of the European software engineering conference and the ACM SIGSOFT symposium on The foundations of software engineering
Performance Prediction of Service-Oriented Applications based on an Enterprise Service Bus
COMPSAC '07 Proceedings of the 31st Annual International Computer Software and Applications Conference - Volume 01
Early prediction of software component reliability
Proceedings of the 30th international conference on Software engineering
jPredictor: a predictive runtime analysis tool for java
Proceedings of the 30th international conference on Software engineering
ICSOC '07 Proceedings of the 5th international conference on Service-Oriented Computing
Model evolution by run-time parameter adaptation
ICSE '09 Proceedings of the 31st International Conference on Software Engineering
Reasoning on Non-Functional Requirements for Integrated Services
RE '09 Proceedings of the 2009 17th IEEE International Requirements Engineering Conference, RE
Towards dynamic monitoring of WS-BPEL processes
ICSOC'05 Proceedings of the Third international conference on Service-Oriented Computing
On estimating actuation delays in elastic computing systems
Proceedings of the 8th International Symposium on Software Engineering for Adaptive and Self-Managing Systems
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Modern software systems are increasingly built out of services that are developed, deployed, and operated by independent organizations, which expose them for use by potential clients. Services may be directly invoked by clients. They may also be composed by service integrators, who in turn expose the composite artifact as a new service. Continuous change is typical of this world. Providers may change services and the deployment infrastructure to meet continuously changing requirements and be more competitive. Clients may change their operational profiles. Changes have a severe impact on the quality of services. In this paper we address the problem of identifying changes concerning the non-functional behavior of software services managed by external organizations, and consequently considered as black-box artifacts. We define the concept of change-point and provide a statistical technique aimed at identifying it, given an execution trace produced by client invocations. Change-point detection is key to reasoning about changes, diagnosing their cause, and suitably reacting to their occurrence.