Quality driven web services composition
WWW '03 Proceedings of the 12th international conference on World Wide Web
Monitoring Web Service Requirements
RE '03 Proceedings of the 11th IEEE International Conference on Requirements Engineering
Adding High Availability and Autonomic Behavior to Web Services
Proceedings of the 26th International Conference on Software Engineering
An Externalized Infrastructure for Self-Healing Systems
WICSA '04 Proceedings of the Fourth Working IEEE/IFIP Conference on Software Architecture
QoS computation and policing in dynamic web service selection
Proceedings of the 13th international World Wide Web conference on Alternate track papers & posters
ICWS '05 Proceedings of the IEEE International Conference on Web Services
An aspect-based process container for BPEL
AOMD '05 Proceedings of the 1st workshop on Aspect oriented middleware development
Enterprise Service Oriented Architectures: Concepts, Challenges, Recommendations
Enterprise Service Oriented Architectures: Concepts, Challenges, Recommendations
Enhancing the Availability of Composite Real-Time Multimedia Web Service
HPCC '08 Proceedings of the 2008 10th IEEE International Conference on High Performance Computing and Communications
ICSOC'05 Proceedings of the Third international conference on Service-Oriented Computing
WS-Policy for service monitoring
TES'05 Proceedings of the 6th international conference on Technologies for E-Services
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The main objective of this paper is to design and develop a Self-Adaptable Media Service Architecture (SAMSA) for providing reliable dynamic composite multimedia service through policy-based actions. The multimedia services such as media retrieval, transcoding, scaling and display services are combined based on the preferences of the user to create a dynamic composite multimedia service called as Video-on-Demand service. Such distributed multimedia services deployed using Service Oriented Architecture (SOA) can be accessed in heterogeneous environments that are prone to changes during run-time. To provide reliable and adaptive multimedia services, a powerful self-adaptable architecture with dynamic compositions of multimedia services is necessary to adapt during run-time and react to the environment. The adaptability in this proposed architecture is achieved by enabling the service providers to Monitor, Analyze and Act on the defined policies that support customization of compositions of multimedia services and guarantee the Quality of Service (QoS) provisioning. The Media Service Monitor (MSM) observes the business and quality metrics associated with the multimedia services during run-time. The monitored results are analyzed by Monitored Results Analyzer (MRA) which identifies the type and location of the fault. The Adaptive Media Service Manager (AMSM) takes corrective actions based on the monitored results, through the policies defined as an extension of WS-Policy (Web Service--Policy framework). The effectiveness of the proposed Self-Adaptable Media Service Architecture (SAMSA) has been evaluated on Dynamic Composite Real-time Video-on-Demand Web Service (DCRVoDWS) for a maximum of 200 simultaneous client's requests. The analysis of results shows that the proposed architecture provides better improvement on reliability, response time and user satisfaction.