SLA is a negotiated agreement between a customer and the service provider on levels of service characteristics and the associated set of metrics. In this paper, we propose a policy-based SLA management system. We present an approach to react not only when an SLA is violated, but also before imminent SLA violations. We provide a common generic framework capable of components to interwork via XML...

An increasing number of organisations decide to promote their core competence only. So, they outsource the required IT Services to an IT service provider and negotiate a Service Level Agreement (SLA) which is the contract between the provider and the organisation (customer). One of the major problems of SLA negotiation is the knowledge gap between provider and customer. The knowledge gap is the...

We present a policy-based, agent-enhanced resource provisioning architecture, which facilitates flexible and quantitative end-to-end bandwidth reservation and management on a per-user, per-application or per-flow basis. Based on this architecture, various session level Service Level Agreement (SLA) negotiation schemes involving bandwidth allocation, service start time, guaranteed session durati...

Media content personalisation is a major challenge involving viewers as well as media content producer and distributor businesses. The goal is to provide viewers with media items aligned with their interests. Producers and distributors engage in item negotiations to establish the corresponding service level agreements (SLA). In order to address automated partner lookup and item SLA negotiation,...

Cloud computing is a promising concept for the implementation of scalable on-demand computing infrastructures, where resources are provided in a self-managing manner based on predefined customers requirements. A Service Level Agreement (SLA), which is established between a Cloud provider and a customer, specifies these requirements. It includes terms like required memory consumption, bandwidth ...

In this paper we study hard real time (HRT) communication over a differentiated service network. Differentiated Services was proposed by IETF as a scalable QoS architecture [1]. Diffserv service providers can provide delay and bandwidth guaranteed service (as per service level agreement (SLA)) by implementing diffserv services with a fair packet scheduling algorithm like WFQ. But this QoS is pr...

Cloud Computing provides user a complete software environment. To serve resources to customers, Software as a Service providers rent resources from the Infrastructure as a Service Providers. Client applications and service providers negotiate for the sales of services by means of Service Level Agreement (SLA) that acts as a contract between them. Depending on the status of the demand, Infrastru...

Novel automatized management systems for optical WDM networks promise to allow customers asking for a connection (i.e., a bandwidth service) to specify on-demand the terms of the Service Level Agreement (SLA) to be guaranteed by the Network Operator (NO). In this work, we exploit the knowledge, among the other Service Level Specifications (SLS), of the holding time and of the availability targe...

In this paper, we design and implement a Webbased Internet/Intranet service management system which can support Quality of Service (QoS) contracted by users and service providers, using Service Level Agreement (SLA) concept. We have analyzed the requirements and management information for Internet/Intranet service management. Based on this analysis, we have defined the suitable QoS parameters f...

In this paper, we study the important issue of verifying service-level agreement (SLA) with an untrusted cloud and present an SLA verification framework that utilizes a third-party auditor (TPA). A cloud provides users with elastic computing and storage resources in a pay-as-you-go way. An SLA between the cloud and a user is a contract that specifies the computing resources and performances tha...