The amount of data managed by organisations continues to grow relentlessly. Driven by the high costs of maintaining multiple local storage systems, there is a well established trend towards storage consolidation using multi-tier Virtualised Storage Systems (VSSs). At the same time, storage infrastructures are increasingly subject to stringent Quality of Service (QoS) demands. Within a VSS, it i...

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 ...

The design of cross-layer scheme, which plays a key role in satellite resource management, is crucial for the data transmission in the CCSDS AOS. In this paper, a novel dynamic cross-layer scheme, which satisfies QoS service, is proposed. This scheme can utilize both the applications’ QoS attributes and physical layer channel state information to change virtual channel bandwidth and transmissio...

<span>The expanding propensity of organization users to utilize cloud services urges deliver in a service pool with variety functional and non-functional attributes from online providers. brokers must intense rivalry competing one another provide quality (QoS) enhancements. Such prompts troublesome muddled providing composite on the using simple selection composition approach. Therefore, ...

Today, the deployment of Web services in many enterprise applications has gained much attention. Service network inhibits certain common properties as they arise spontaneously and are subject to high fluctuation. The objective of consumer is to compose services for stable business processes in coherence with their legacy system capabilities and with better quality of services. For this purpose ...

The multi-criteria vertical handoff algorithm plays an important role in heterogeneous wireless networks. There are two drawbacks in the available multi-criteria vertical handoff algorithms. The conventional algorithms do not give the feasible method to determine attribute weight values, and do not also consider the dependency relationship among the decision attributes, which are not mutually i...

Traditionally, the research on packet scheduling has focused mostly on QoS and fairness for different QoS classes or different applications, while opportunistic scheduling algorithms have focused on exploiting the time-varying nature of the wireless channels and to provide fairness to the different mobile users. This segregation between packet scheduling and radio resource allocation is not eff...

We present Architectural Design Rewriting (ADR), a graphbased approach to deal with the design of reconfigurable software architectures. The key features we promote are: (i) hierarchical design; (ii) soft constraints for modeling QoS attributes; (iii) style-preserving reconfigurations; (iv) rule-based approach; and (v) algebraic presentation. Roughly, actual architectures are modeled by graphs ...

In most of the current trust model, the evaluation of whether an entity is trust is different to different judger. The reason of this phenomenon is that different judger use the different standard in its opinion. So the evaluation lack of convincing, are not well describe the relationship between two parties. In response to these issues, drawing on the trust relationship between human societies...

For large-scale access of web services, such as news web services connected to a database, it is challenging to provide the expected QoS attributes, such as response time and availability. Further, using a single server host is not enough to provide the expected non-functional characteristics of the published web services. Especially, if the server host experience any problem, this will downgra...