A Comprehensive Ontology-Based Approach for SLA Obligations Monitoring

Fakhfakh, Kaouthar; Chaari, Tarak; Tazi, Saïd; Drira, Khalil; Jmaïel, Mohamed

doi:10.1109/advcomp.2008.21

Cited by 17 publications

(12 citation statements)

References 14 publications

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“…Reference [15] studies request dispatching priorities to meet SLA targets in service delivery centers. Reference [16] presents a ontology-based approach to monitor SLA violations.…”

Section: Related Workmentioning

confidence: 99%

Modeling the Impact of Service Level Agreements During Service Engagement

Diao

Lam

Shwartz

et al. 2014

IEEE Trans. Netw. Serv. Manage.

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One of the key promises of IT strategic outsourcing is to deliver greater IT service management through lower cost. However, this raises a critical question: How can one predict the service delivery cost that will deliver the promised service level agreements (SLAs)? This is particularly challenging since such prediction is mostly needed during the service engagement phase where the SLAs and the delivery cost are negotiated, and the detailed service modeling data are not available. In this paper, we propose a modeling framework that uses queueing-model-based approaches to estimate the impact of SLAs on the delivery cost. We further propose a set of approximation techniques to address the complexity of service delivery and an optimization model to predict the delivery cost subject to service-level constraints and service stability conditions. We demonstrate the applicability of the proposed methodology using data from a large IT service delivery environment.Index Terms-IT service management, service engagement, service delivery cost, service level agreement, queueing model.

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“…Reference [15] studies request dispatching priorities to meet SLA targets in service delivery centers. Reference [16] presents a ontology-based approach to monitor SLA violations.…”

Section: Related Workmentioning

confidence: 99%

Modeling the Impact of Service Level Agreements During Service Engagement

Diao

Lam

Shwartz

et al. 2014

IEEE Trans. Netw. Serv. Manage.

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“…As depicted in Figure 3 the contents of these templates can be modified during the process of SLA creation and negotiation (within constraints defined by the service provider) to better match the requirements of a customer. More comprehensive SLA management may require using of the Semantic Web technologies and using ontologies for SLA definition and logical reasoning as discussed in [31] and applied for inter-cloud scenario by Wlodarczyk in [32].…”

Section: Sla Managementmentioning

confidence: 99%

Security Infrastructure for On-demand Provisioned Cloud Infrastructure Services

Demchenko

Ngo

Laat

et al. 2011

2011 IEEE Third International Conference on Cloud Computing Technology and Science

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Abstract-Providing consistent security services in on-demand provisioned Cloud infrastructure services is of primary importance due to multi-tenant and potentially multi-provider nature of Clouds Infrastructure as a Service (IaaS) environment. Cloud security infrastructure should address two aspects of the IaaS operation and dynamic security services provisioning: (1) provide security infrastructure for secure Cloud IaaS operation; (2) provisioning dynamic security services, including creation and management of the dynamic security associations, as a part of the provisioned composite services or virtual infrastructures. The first task is a traditional task in security engineering, while dynamic provisioning of managed security services in virtualised environment remains a problem and requires additional research. In this paper we discuss both aspects of the Cloud Security and provide suggestions about required security mechanisms for secure data management in dynamically provisioned Cloud infrastructures. The paper refers to the architectural framework for on-demand infrastructure services provisioning, being developed by authors, that provides a basis for defining the proposed Cloud Security Infrastructure. The proposed SLA management solution is based on the WS-Agreement and allows dynamic SLA management during the whole provisioned services lifecycle. The paper discusses conceptual issues, basic requirements and practical suggestions for dynamically provisioned access control infrastructure (DACI). The paper proposes the security mechanisms that are required for consistent DACI operation, in particular security tokens used for access control, policy enforcement and authorisation session context exchange between provisioned infrastructure services and Cloud provider services. The suggested implementation is based on the GAAA Toolkit Java library developed by authors that is extended with the proposed Common Security Services Interface (CSSI) and additional mechanisms for binding sessions and security context between provisioned services and virtualised platform.

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“…In multiinfrastructure like telecom, cloud computing rely on the usage of SLA. Automation of SLA provides such functionalities to define monitor and manage information flow between multiple actors [5], [6].…”

Section: B Service Level Agreements (Slas)mentioning

confidence: 99%

Engineering of trustworthy smart grids implementing service level agreements

Gustavsson

Hussain

Nordström

2011

2011 16th International Conference on Intelligent System Applications to Power Systems

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Future Smart Grids have to meet high expectations from our societies on improved energy efficiency and sustainability. However, system uptake and acceptance will to a large extent depend on the perceived trust by different stakeholders. In the paper we address issues related to engineering of trustworthy systems. This type of Engineering will be grounded in reliable models of interoperability. A key issue is here interoperability of information exchange and sharing. Based on analysis of trust concerns, we propose a model of coordinating and monitoring by Service Level Agreements (SLAs) between stakeholders to ensure trustworthiness of system performance and behavior. We illustrate our methods on case related to trustworthy inclusion of DERs in Smart Grids.

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A Comprehensive Ontology-Based Approach for SLA Obligations Monitoring

Cited by 17 publications

References 14 publications

Modeling the Impact of Service Level Agreements During Service Engagement

Modeling the Impact of Service Level Agreements During Service Engagement

Security Infrastructure for On-demand Provisioned Cloud Infrastructure Services

Engineering of trustworthy smart grids implementing service level agreements

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