SLA detective control model for workflow composition of cloud services

The disqualification of third-party cloud services has caused great threat to large-scale Enterprise Systems (ESs). Service Level Agreements (SLA) management is used to enhance Quality of Service (QoS) in an effective way. Conventional service exception handling is triggered to deal with functional...

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Bibliographic Details
Main Authors: Yong Sun, Wenan Tan, Ler Li, Guangzhen Lu, Anqiong Tang
Format: Conference Proceeding
Language:English
Subjects:
Cloud computing
Control charts
Monitoring
Performance Monitor
Quality of service
Reliability
Service Level Agreements
Time factors
Workflow Scheduling
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Summary:The disqualification of third-party cloud services has caused great threat to large-scale Enterprise Systems (ESs). Service Level Agreements (SLA) management is used to enhance Quality of Service (QoS) in an effective way. Conventional service exception handling is triggered to deal with functional failure. However, in some critical business scenario, service failures and performance violations need to be proactively prevented instead of recovery triggered by the occurrence of those failures. In this paper, a proactive detective control model is proposed to prevent workflow SLA violation supported by the utilization of SLA utility functions and control charts. Emulation case study illustrates the proposed model, and simulation results show that workflow SLA management can effectively avoid cloud services composition failures.
DOI:10.1109/CSCWD.2013.6580957