Cloud computing refers to Internet based development and utilization of computer technology. It is a style of computing, in which dynamically scalable (and often virtualized) resources are provided as a service over the Internet. The concepts behind cloud computing incorporate Software-as-a-Service (SaaS), Platform-as-a-Service (PaaS), and Infrastructure-as-a-Service (IaaS), respectively. In to...

Current cloud service offerings, i.e., Software-as-a-service (SaaS), Platform-asa-service (PaaS) and Infrastructure-as-a-service (IaaS) offerings are often provided as monolithic, one-size-fits-all solutions and give little or no room for customization. This limits the ability of Service-based Application (SBA) developers to configure and syndicate offerings from multiple SaaS, PaaS, and IaaS p...

The hype on the Cloud is based on promising cost savings if, considering the new service platform concepts (IaaS, PaaS, SaaS) the term comes with, IT resources will be used effectively. Therefore, the trend is moving away from physical systems to more instant and shortterm environments and virtualization is increasingly taking on a key role in various system architectures. This is already well ...

Over and above the IaaS bene ts described in the preceding are those of Software as a Service (SaaS). In the SaaS model, a vendor takes responsibility for not only infrastructure, but also for all of the processes required to manage an entire application solution (patches, upgrades, backups, database management, systems tuning, performance management, etc.). Because SaaS vendors manage many cus...

Service-oriented architectures are rapidly gaining presence and popularity in the development of distributed software systems. Their rapid diffusion is changing the software engineering landscape and is opening the way to implement the idea of “software as a service” [19], i.e. something that one uses to compose a workflow that achieves a business goal, and then disengages. A service-oriented s...

Cloud computing is transforming the software landscape. Software services are increasingly designed in modular and decoupled fashion that communicate over a network and are deployed on the Cloud. Cloud offers three service models namely Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS), and Softwareas-a-Service (SaaS). Although this allows better management of resources, the Qual...

Cloud Computing is one of the technologies with rapid development in recent years where there is increasing interest in industry and academia. This technology enables many services and resources for end users. With the rise of cloud services number of companies that offer various services in cloud infrastructure is increased, thus creating a competition on prices in the global market. Cloud Com...