We present a novel bandwidth resource provisioning system that enables dynamic, flexible and quantitative end-to-end bandwidth reservation and management. The system facilitates agent-enhanced Service Level Agreement (SLA) negotiation and brokering on a per-user, per-application or per-flow basis. In this paper, various session level SLA schemes involving bandwidth allocation, service start tim...

Moving towards a global market of services requires flexible infrastructures that will deal with the inevitable semantic heterogeneity that occurs during the negotiation that precedes the trading of a service. In order to reach an agreement, the negotiating parties need to understand the concepts describing the Quality of Service (QoS) terms which are part of the Service Level Agreement (SLA). ...

Services are becoming widely used in the world of engineering and manufacturing as well. Both traditional and computational resources are often encapsulated as Web services, providing the basis for building service-oriented architectures (SOA) based on standards. Services are used on the basis of contractual agreements. A service level agreement (SLA) provides the operational definition of a se...

The continued trend of globalization and technology improvement like the internet and transportation have spawned an increasing number of complex service chains that span across local, regional and national boundaries. Service level agreement (SLA) plays a crucial role in gluing service chains together. In that regard, this paper provides a complete guidance of end-to-end lifecycle management o...

Service Level Agreement (SLA) specification languages express monitorable contracts between service providers and consumers. It is of interest to determine if predictive models can be derived for SLAs expressed in such languages, if possible in a fashion that is as automated as possible. Assuming that the service developer or user uses some SLA specification languages during the service develop...

In this work we propose GXLA, a language for the specification of Service Level Agreements (SLA). GXLA represents the implementation of the Generalized Service Level Agreement (GSLA) information model we proposed in a previous work. It supports multi-party service relationships through a role-based mechanism. It is intended to catch up the complex nature of service interactivity in the broader ...

The transmission of multimedia streams with a particular and guaranteed level of QoS (Quality of Service) from source to destination is a major challenge in multimedia communications over IP networks. In this paper, we introduce a generalized, flexible form of the traditional SLA (Service Level Agreement) between users and network owners, for the transmission of a multimedia stream with several...

It is imperative for a competitive e-business service provider to be positioned to manage the execution of its service level agreement (SLA) contracts in business terms (e.g., minimizing financial penalties for service-level violations, maximizing service-level measurement based customer satisfaction metrics). This paper briefly describes the design rationale of an integrated set of businessori...