Internet evolution delineated through the last years has urged the wireless network community to adopt the support of the IP protocol. The deployment of IP multimedia services with guaranteed quality of service in both the access and core network is one of the primary requirements for 3G wireless networks. This paper focuses on issues regarding interoperability with external, “wired” QoS-enable...

Services for Advanced Communication Networks are described in this paper. An Artificial Neural Network will be used for the control of Network Elements, in our case a Switch. Classical sequence data processing is substituted by parallel processing. The classical switch and the switch controlled by a Kohenen Artificial Neural Network are compared. The switch has four ports and its own Quality of...

Workflow management system, a technique that manages different types of processes/jobs gathered as a workflow, ensures that each task in the workflow is accomplished to proceed further. When the process happens between two parties, the client and the server, a binding agreement or contract is defined specifying the Quality of Service (QoS) metrics such as products/services to be delivered, the ...

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 ...

When describing Web services, one of the obvious aspects that needs representing is Quality of Service” (QoS), the capability of a Web service to meet an acceptable level of service as per factors such as availability and accessibility. However too much of a focus on developing functional QoS ontologies has led to an over-emphasis on representing solely QoS metrics and units of measurement. For...

With Web services starting to be deployed within organizations and being offered as paid services across organizational boundaries, quality of service (QoS) has become one of the key issues to be addressed by providers and clients. While methods to describe and advertise QoS properties have been developed, the main outstanding issue remains how to implement a service that lives up to promised Q...

With the explosive growth of the number of services published over the Internet, it is difficult to select satisfactory web services among the candidate web services which provide similar functionalities. Quality of Service (QoS) is considered as the most important non-functional criterion for service selection. But this criterion is no longer considered as the only criterion to rank web servic...

Workflow management systems (WfMSs) have been used to support various types of business processes for more than a decade now. In workflows or Web processes for e-commerce and Web service 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 o...

Developed as a simple and cost-effective wireless technology for best effort services, IEEE 802.11 has gained popularity at an unprecedented rate. However, due to the lack of built-in Quality of Service (QoS) support, IEEE 802.11 experiences serious challenges in meeting the demands of real-time multimedia services and applications. QoS is a key consideration for wireless networks and implement...

Quality of Service (QoS) once defined in a contract between two parties may change during the life-cycle of Service-Based Applications (SBAs). Changes could be due to system failures or evolution of quality requirements from the involved parties. Therefore, Web Services need to be able to adapt dynamically to respond to such changes. Adaptation and evolution of services are playing an important...