The specification and management of Quality of Service (QoS) is important in networks and distributed computing systems, particularly to support multimedia applications. The advent of portable lap-top computers, palmtops and Personal Digital Assistants with integrated communication capabilities facilitates mobile computing. This paper is a survey of QoS concepts and techniques for mobile distri...

In general, Policy-based approaches play an important role in the management of web services, for instance, in the choice of semantic web service and quality of services (QoS) in particular. The present research work illustrates a procedure for the web service selection among functionality similar web services based on WS-Policy semantic matching. In this study, the procedure of WS-Policy publi...

Automating Service Oriented Architectures by augmenting them with semantics will form the basis of the next generation of computing. Selection of service still is an important challenge, especially, when a set of services fulfilling user’s capabilities requirements have been discovered, among these services which one will be eventually invoked by user is very critical, generally depending on a ...

Numerous monumental changes have been made in the existing web service selection to provide quality of services. The quality of service is a major bottle neck in the recent development. Hitherto various QoS based Web Service Selection Techniques exist. But these techniques lacks in functional and non-functional attributes. This paper consists with the following tasks; segregate various QoS base...

Quality of service (QOS) of a choreography is dependent on the quality of service of participating roles. Recently, a proposal has been made to extend the meta model of WSDL to include QOS parameters. These parameters include reliability, availability and demand. In this paper we propose a multidimensional model of quality of service of a choreography based on above proposed extensions. Our pro...

when the most trusted models evaluate level of trust about service entities at present, the credibility of the service attributes whether the two sides trading result is credible is rather ambiguous, which makes the evaluation model lack of persuasion, and not very good depict the complexity and uncertainty of trust relationship between the two sides. In view of the above questions, learning tr...

The rapid development and deployment of network services has brought a series challenges to researchers. On the one hand, needs Internet end users/applications reflect characteristics travel alienation, they pursue different perspectives service quality. other with explosive growth information in era big data, lot private is stored network. End naturally start pay attention security. In order s...

− This work investigates quality of service (QoS) attributes at five levels in a version of an information dissemination system called the Agile Information Control Environment (AICE). These levels are: application, information flow, infochannel, MetaNet, and network. The user is interested in application QoS. An information flow is a communication need between a source-sink pair in response to...

The majority of today’s Internet-based services are generally not concerned about the level of Quality of Service (QoS) presented to their users. For many such services, however, the QoS perceived by users is becoming a critical success factor. The main QoS attributes include those related to the service availability and timeliness. Ensuring them is essential to many services. In our opinion, t...

Now a day, energy consumption is the big challenge in heterogeneous cloud computing environment that needs to be considered. Cloud service provider also satisfy customer’s Quality of Service (QoS) for better utilization. An efficient task scheduling based on QoS parameter has been proposed address above said challenge. Firsty, all incoming tasks are categorized into four classes some special at...