Cloud computing is a rapidly growing segment of the IT industry that will bring new service opportunities with significant cost reduction in IT capital expenditures and operating costs, on-demand capacity, and pay-per-use pricing models for IT service providers. Among these services are Software-as-a-Service, Platform-as-a-Service, Infrastructure-as– a-Service, Communication-as-a-Service, Monit...

In view of personal information leakage risk in the process of online payment, this study puts forward a cloud protection system which can improve personal information security. The system includes two modules: personal information security model and cloud service providers trust evaluation system. Among them, the personal information security model includes four layers design: the user, interf...

Cloud computing service providers' offer their customers' services maximizing their revenues, whereas customers wish to minimize their costs. In this paper we shall concentrate on consumers' point of view. Cloud computing services are composed of services organized according to a hierarchy of software application services, beneath them platform services which also use infrastructure services. P...

As cloud computing is increasingly transforming the information technology landscape, organizations and businesses are exhibiting strong interest in Software-as-a-Service (SaaS) offerings that can help them increase business agility and reduce their operational costs. They increasingly demand services that can meet their functional and non-functional requirements. Given the plethora and the var...

The emergence of more and more cloud offerings from a multitude of service providers calls for a meta cloud, which smoothens the jagged cloud landscape. We discuss our proposal for such a meta cloud, and explain how it solves the lock-in problems that current users of public and hybrid clouds face. The cloud computing paradigm has found widespread adoption throughout the last years. The reason ...

Resource allocation for simulation applications in cloud simulation environment brings new challenges to infrastructure service providers. In order to meet the constraint of SLA and to allocate the available virtualized resources optimally, this paper first presents autonomic resource management architecture, and then proposes a resource allocation algorithm for infrastructure service providers...