Differentiated service

About: Differentiated service is a research topic. Over the lifetime, 5539 publications have been published within this topic receiving 105225 citations.

Systems and methods for providing differentiated service in information management environments

Abstract: Methods and systems for providing differentiated service that may be employed, for example, to deliver content or services in a network environment. Differentiated services that may be so delivered include both differentiated information service that may be implemented, for example, at the system and/or processing level, as well as differentiated business service that may be implemented, for example, to differentiate information exchange between different network entities such as different network provider entities, different network user entities, etc. The methods and systems may include or facilitate provisioning of system service parameters such as service level agreement (“SLA”) policies and may be employed in network computing system environments to enable differentiated service provisioning, for example, in accordance with business objectives.

QoS-Aware Service Composition: A Survey

Abstract: Service compositions build new services by orchestrating a set of existing services. In the Internet of Services there may be many functional similar services, but with different Quality of Service (QoS). Thus a significant research problem in service compositions is how to select the composition’s composite services that the overall QoS of the composition is being maximized. This paper summarizes, classifies and evaluates major research efforts in this area and gives an overview about further open research questions.

Accounting method and apparatus for communications networks

Abstract: An accounting framework is provided for a communications system (10) having a plurality of service providers, including cellular service providers (40, 42) and/or data network service providers, e.g., Internet service providers (36, 38). Accounting units (70) containing accounting information are exchanged between service providers to allow the service providers to charge for usage of services. The accounting units (70) have a predetermined format to allow them to be exchanged between different service providers. Each accounting unit (70) includes a plurality of fields, including a service type field (71), a usage of radio interface field (72), a usage of a visited or external network field (73), a usage of mobility management field (74), a quality of service field (78), a usage of a packet data protocol field (82), and other fields. Users may be charged for services based on these fields.

Representing, analysing and managing web service protocols

Abstract: In the area of Web services and service-oriented architectures, business protocols are rapidly gaining importance and mindshare as a necessary part of Web service descriptions. Their immediate benefit is that they provide developers with information on how to write clients that can correctly interact with a given service or with a set of services. In addition, once protocols become an accepted practice and service descriptions become endowed with protocol information, the middleware can be significantly extended to better support service development, binding, and execution in a number of ways, considerably simplifying the whole service life-cycle. This paper discusses the different ways in which the middleware can leverage protocol descriptions, and focuses in particular on the notions of protocol compatibility, equivalence, and replaceability. They characterize whether two services can interact based on their protocol definition, whether a service can replace another in general or when interacting with specific clients, and which are the set of possible interactions among two services.

QoS-assured service composition in managed service overlay networks

Abstract: Many value-added and content delivery services are being offered via service level agreements (SLAs). These services can be interconnected to form a service overlay network (SON) over the Internet. Service composition in SON has emerged as a cost-effective approach to quickly creating new services. Previous research has addressed the reliability, adaptability, and compatibility issues for composed services. However little has been done to manage generic quality-of-service (QoS) provisioning for composed services, based on the SLA contracts of individual services. In this paper we present QUEST a QoS assUred composEable Service infrasTructure, to address the problem. QUEST framework provides: (1) initial service composition, which can compose a qualified service path under multiple QoS constraints (e.g., response time, availability). If multiple qualified service paths exist, QUEST chooses the best one according to the load balancing metric; and (2) dynamic service composition, which can dynamically recompose the service path to quickly recover from service outages and QoS violations. Different from the previous work, QUEST can simultaneously achieve QoS assurances and good load balancing in SON.