The paper focuses on creation of an effective dynamic ranking service for IaaS, PaaS and SaaS cloud providers. It considers building a quality model for this purpose along with definition of quality measurement procedures. The paper discusses several techniques known from already existing price comparison engines that could be modified and adopted for comparison of cloud providers. A technique ...

Cloud computing has become new trend, which many enterprises wants to incorporates in their working. Since it relies on sharing of computing resources rather than having local servers or personal devices to handle applications. Cloud computing offers reduced capital expenditure, operational risks, complexity and maintenance, and increased scalability while providing services at different abstra...

Due to the fast growth, Cloud Computing has become a non-transparent market with providers and customers willing to adopt it. Furthermore, many offers only partially meet customers’ requirements and it is not clear how exactly Cloud Computing influences the IT. That makes it difficult for customers to plan migration projects and implement sustainable Cloud solutions. There are important factors...

Cloud computing is an emerging technology that allows to access computing resources on a pay-per-use basis. The main challenges in this area are the efficient performance management and the energy costs minimization. In this paper we model the service provisioning problem of Cloud Platform-as-aService systems as a Generalized Nash Equilibrium Problem and show that a potential function for the g...

Cloud Computing is one of the latest hypes in the mainstream IT world. In this context, Spatial Data Infrastructures (SDIs) have not been considered yet. This paper reviews this novel technology and identifies the paradigm behind it with regard to SDIs. Concepts of SDIs are analyzed in respect to common gaps which can be solved by Cloud Computing technologies. A real world use case will be pres...

This paper describes the most important characteristics of cloud computing paradigm in order to be used as powerful arrows towards efficient approaches in teaching data analysis. Also High Performance Computing aspects are considered for solving large complexity data analysis problems. The usage of both Cloud Computing and High Performance Computing will assure not only an excellent framework f...

Received May 13, 2012 Revised May 30, 2012 Accepted June 5,2012 This paper outlines the key characteristics that cloud computing technologies possess and illustrates the cloud computing stack containing the three essential services (SaaS, PaaS and IaaS) that have come to define the technology and its delivery model. The underlying virtualization technologies that make cloud computing possible a...

Cloud computing offers a new way to deliver services while significantly changing the cost structure underlying those services. This new technical and pricing opportunities change in the way the business operate. It combines the features of traditional computing technology like grid, parallel and distributed computing and so on. The aim of cloud computing is to provide a high performance comput...

Cloud computing is a web based utility model. Cybercrimes effecting web based system are equally applicable in the cloud computing. Considering the sensitivity and the damage that can be caused by cybercrimes, this work is an effort to study the various cyber threats and methods to mitigate them. Firstly, it highlights the cloud usage as per the various services model (IaaS, PaaS, and SaaS) and...

Cloud Computing is an emerging area for accessing computing resources. In general, Cloud service providers offer services that can be clustered into three categories: SaaS, PaaS and IaaS. This paper discusses the Cloud workload analysis. The efficient Cloud workload resource mapping technique is proposed. This paper aims to provide a means of understanding and investigating IaaS Cloud workloads...