WASET
	%0 Journal Article
	%A Rima Grati and  Khouloud Boukadi and  Hanene Ben-Abdallah
	%D 2012
	%J International Journal of Computer and Information Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 70, 2012
	%T An Event Based Approach to Extract the Run Time Execution Path of BPEL Process for Monitoring QoS in the Cloud
	%U https://publications.waset.org/pdf/8148
	%V 70
	%X Due to the dynamic nature of the Cloud, continuous monitoring of QoS requirements is necessary to manage the Cloud computing environment. The process of QoS monitoring and SLA violation detection consists of: collecting low and high level information pertinent to the service, analyzing the collected information, and taking corrective actions when SLA violations are detected. In this paper, we detail the architecture and the implementation of the first step of this process. More specifically, we propose an event-based approach to obtain run time information of services developed as BPEL processes. By catching particular events (i.e., the low level information), our approach recognizes the run-time execution path of a monitored service and uses the BPEL execution patterns to compute QoS of the composite service (i.e., the high level information).

	%P 1275 - 1281