ion Levels — SaaS — PaaS — IaaS — Hardware Resources —— With virtualization technology —— Without virtualization technology Roles — Consumer — Provider — Intermediary SLAs — Internal — External

The increasing cost in power consumption in data centers, and the corresponding environmental threats have raised a growing demand in energy-efficient computing. Despite its importance, little work was done on introducing models to manage the consumption efficiently. With the growing use of Cloud Computing, this issue becomes very crucial. In a Cloud Computing, the services run in a data center...

Platform as a Service (PaaS) solutions are changing the ways that software is produced, distributed, consumed, and priced. Unlike Software as a Service (SaaS) or Infrastructure as a Service (IaaS), PaaS allows for value co-creation by offering complementary components and applications that are developed in emerging ecosystems of third party developers. Despite increasing interest among practiti...

Nowadays Cloud computing has made a revolutionary change in the concept of computation on the web. It has been able to provide low cost services to its users all over the world. Millions of users are using the service of cloud either by IaaS, PaaS and SaaS. Now the main concern of cloud service providers and users how to preserve security in these low cost services. Throughout this research we ...

Today, Cloud Computing is rising strongly, presenting itself to the market by its main service models, known as IaaS, PaaS and SaaS, that offer advantages in operational investments by means of on-demand costs, where consumers pay by resources used. In face of this growth, security threats also rise, compromising the Confidentiality, Integrity and Availability of the services provided. Our work...

Cloud computing is an emerging paradigm with three main facets: Software as a Service (SaaS), Platform as a Service (PaaS) and Infrastructure as a Service (IaaS). Several benefits are expected from cloud-based conferencing (e.g. efficiency in resource usage, easy introduction of new conferencing applications). This paper proposes a publication and discovery architecture for the interactions bet...

The recent concept of ‘‘Health Insurance Marketplace’’ introduced to facilitate the purchase of health insurance by comparing different insurance plans in terms of price, coverage benefits, and quality designates a key role to the health insurance providers. Currently, the web based tools available to search for health insurance plans are deficient in offering personalized recommendations based...

Search as a Service (SaaS) is a cloud service model whose main focus is on enterprise search or site-specific web search. Modern companies require fast and accurate information from their internal databases, internal document stores, or through the content of a website. Having a reliable searching mechanism is essential for both internal company staff and for external customers. In this paper t...

Cloud computing is a new paradigm of IT. It can provide all resources such as software (SaaS), platform (PaaS) and infrastructure (IaaS) as a service over the internet. It also offers the opportunity to store a huge amount of data relatively cheaply. In cloud computing, user can access the services regardless of their location or computing device/platform they use. In these advantages, many res...

This paper describes however cloud huge and large and massive information technologies square measure connection to supply a cheap delivery model for cloud-based big information analytics. Cloud computing may be a powerful technology to perform massive-scale and complicated computing. It eliminates the requirement to keep up pricy computing hardware, dedicated area, and software package. Large ...