Flexible SLA Negotiation Using Semantic Annotations

Muñoz, Henar; Kotsiopoulos, Ioannis; Micsik, András; Koller, Bastian; Mora, Juan Patricio Galindo

doi:10.1007/978-3-642-16132-2_16

Cited by 8 publications

(8 citation statements)

References 7 publications

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“…They combine the cloud consumer's private SLA and public SLAs to create a new SLA for the consumer. However, updating the consumer's SLA to meet any change is still difficult due to the complexities that exist in the current SLA specification languages used for defining the private SLA, as well as public SLAs [10,20]. In addition, when using these mapping approaches, the cloud consumer needs to define his private SLA manually.…”

Section: Related Workmentioning

confidence: 98%

A framework to address inconstant user requirements in cloud SLAs management

et al. 2014

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Dynamically managing service level agreements (SLAs) is a non-trivial issue for both active media technology users and providers. Cloud computing is considered as one of the significant components of the rapidly emerging active media in the current era. As the technology grows rapidly, cloud computing requirements and techniques also change over time, while the current cloud SLA management methods are rigorous in terms of SLA contents updates with the technology innovation and user requirement change. In other words, public SLAs are used as templates, and when issuing a new SLA, it is necessary to map its requirements to all public SLAs. In addition, updating any consumer's SLA requires a cumbersome process of remapping their changed requirements to all public SLAs. This paper proposes a cloud computing SLA management mechanism based on the real options analysis concept to manage cloud SLAs in a dynamic manner. At the beginning, or when issuing a new SLA, the proposed framework receives a new user's requirements and maps these to all public SLAs, while executes only the most appropriate SLA based on options analysis and records/marks the other related solutions (SLAs) for future analysis to address any further change due to internal/external factor. This also provides a mechanism to effectively counter uncertainty parameters triggering dynamic change in cloud SLA management. The framework was deployed using Web SLA and Java followed by an experimental study to evaluate the efficacy and scalability of the proposed framework. The results show that the proposed framework provides efficient and scalable cloud SLA management mechanism.

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Section: Related Workmentioning

confidence: 98%

A framework to address inconstant user requirements in cloud SLAs management

et al. 2014

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“…Several works deal with autonomic QoS matching in various distributed environments (e.g., [7], [8], [9], [10], [11]). Similarly to our approach, these works also focus on matching requirements of different SLAs.…”

Section: Related Workmentioning

confidence: 99%

“…The most common solution for these issues in research is creation of SLA ontologies [7], [8], [9], [10], [11]. However, although ontologies may solve the problem for a static set of SLA elements by forcing market participants to specify the semantics of their requirements, they do not solve the problem of dynamic user base and ever-changing requirements for services.…”

Section: Introductionmentioning

confidence: 99%

Automatic SLA Matching and Provider Selection in Grid and Cloud Computing Markets

Redl

Breskovic

Brandić

et al. 2012

2012 ACM/IEEE 13th International Conference on Grid Computing

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Abstract-Cloud computing is a novel computing paradigm that offers data, software, and hardware services in a manner similar to traditional utilities such as water, electricity, and telephony. Usually, in Cloud and Grid computing, contracts between traders are established using Service Level Agreements (SLAs), which include objectives of service usage. However, due to the rapidly growing number of service offerings and the lack of a standard for their specification, manual service selection is a costly task, preventing the successful implementation of ubiquitous computing on demand. In order to counteract these issues, automatic methods for matching SLAs are necessary. In this paper, we introduce a method for finding semantically equal SLA elements from differing SLAs by utilizing several machine learning algorithms. Moreover, we utilize this method to enable automatic selection of optimal service offerings for Cloud and Grid users. Finally, we introduce a framework for automatic SLA management, present a simulation-based evaluation, and demonstrate several significant benefits of our approach for Cloud and Grid users.

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“…They were mainly used in the telecommunication domain and used as study printouts there was a tendency in the research community to try to adapt the SLA concepts on other domains (Green et al, 2007;Munoz et al, 2010).…”

Section: Related Workmentioning

confidence: 99%

“…Munoz et al (2010) and Parkin et al (2008) described an abstract, domain-independent protocol for the renegotiation of an agreement, including SLA formed using the WS-Agreement standard. Their proposed protocol is based on the principles of contract law to make any new agreements using them, legally compliant.…”

Section: Related Workmentioning

confidence: 99%

On the Fly Negotiation for Urgent Service Level Agreement on Intercloud Environment

Mehdi¹

2011

Journal of Computer Science

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Problem statement: Impatient jobs are the jobs that have strict constraints in starting and completion time and need a fast response and attention in mapping to resources. The negotiation process in cloud computing needs a customer-provider agreement that leads to loss of a significant amount of time for impatient jobs. The huge increasing in cloud service providers makes selecting the best provider an exhaustive task. Approach: We considered the problem of Service Level Agreement (SLA) negotiation and commitment process for immediate mode scheduling under intercloud paradigm. This study explored an alternative model dedicated for impatient jobs under intercloud paradigm. We developed a model of negotiation where the cloud-broker had the ability to nominate the best cloud provider, commit the agreement and submit the jobs for execution. Cloudsim simulators with synthetic datasets had been used to evaluate the proposed system. Results: The results showed an improvement in SLA waiting time and the number of jobs failure. Conclusion: This study proved the importance of rapid mapping for impatient jobs in increasing system throughput.

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Flexible SLA Negotiation Using Semantic Annotations

Cited by 8 publications

References 7 publications

A framework to address inconstant user requirements in cloud SLAs management

A framework to address inconstant user requirements in cloud SLAs management

Automatic SLA Matching and Provider Selection in Grid and Cloud Computing Markets

On the Fly Negotiation for Urgent Service Level Agreement on Intercloud Environment

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