Geoprocessing is a basic element in spatial data infrastructure (SDI). As more and more geoprocessing functions are available as Web Services in SDI, the quality of geoprocessing services has become an important concern in providing effective geoprocessing in a distributed environment. This paper introduces the design and implementation of GeoQoS to support QoS-aware geoprocessing on the Web. K...

Workflow management systems (WfMSs) have been used to support various types of business processes for more than a decade now. In workflows for e-commerce and Web-services applications, suppliers and customers define a binding agreement or contract between the two parties, specifying Quality of Service (QoS) items such as products or services to be delivered, deadlines, quality of products, and ...

Development of new communication services demands the complete understanding of the Quality of Service (QoS) requirements and efficient interaction with resources and the other services of the communication system. This paper proposes the use of a global QoS framework based on a common semantic namespace for the deployment of QoS oriented communication services offered by the Fully Programmable...

The ability to assess the quality of a service (QoS) is important to the emerging cloud computing paradigm. When many cloud service providers exist offering many functionally identical services, the prospective users of these services will wish to use one that offers the best quality. Many techniques and tools have been proposed to assess QoS, and the ability to deal with uncertainty surroundin...

Quality of service (QoS) is increasingly being used to describe a broad collection of attributes, ranging from the performance-centric metrics used in the networking community to other metrics related to reliability, timeliness, and security. Moreover, QoS is also being applied to guarantees provided by a wider variety of services, ranging from communication services to higher level middleware ...

With the fast-pacing deployment of wireless sensor network(WSN) services, service ranking becomes more and more important. However, current service ranking methods mostly ignore the physical-level quality variation, making service ranking inaccurate. To address this problem, in this paper we propose a novel QoS-based ranking approach for WSN services, which employs the physical-level context aw...

Current Internet is not able to deploy advanced end-to-end services to support new applications, like interactive multimedia. The best effort service, supported by the Internet, does not offer Quality of Service (QoS) performance guarantees to these applications. Although technology for providing QoS-based services inside domains (networks) is available, the challenge is how domains should inte...

Determining the QoS (quality of service) of composite Web services is of crucial importance for both service providers and consumers. However, service descriptions of constituent services are often heterogeneous which makes the aggregation of multiple single-service QoS difficult. In this paper, we address the heterogeneity problem from the perspective of knowledge engineering. We propose a QoS...