Notes on Cloud computing principles

This letter provides a review of fundamental distributed systems and economic Cloud computing principles. These principles are frequently deployed in their respective fields, but their inter-dependencies are often neglected. Given that Cloud Computing first and foremost is a new business model, a new model to sell computational resources, the understanding of these concepts is facilitated by treating them in unison. Here, we review some of the most important concepts and how they relate to each other

A State-of-the-art Integrated Transportation Simulation Platform

Nowadays, universities and companies have a huge need for simulation and modelling methodologies. In the particular case of traffic and transportation, making physical modifications to the real traffic networks could be highly expensive, dependent on political decisions and could be highly disruptive to the environment. However, while studying a specific domain or problem, analysing a problem through simulation may not be trivial and may need several simulation tools, hence raising interoperability issues. To overcome these problems, we propose an agent-directed transportation simulation platform, through the cloud, by means of services. We intend to use the IEEE standard HLA (High Level Architecture) for simulators interoperability and agents for controlling and coordination. Our motivations are to allow multiresolution analysis of complex domains, to allow experts to collaborate on the analysis of a common problem and to allow co-simulation and synergy of different application domains. This paper will start by presenting some preliminary background concepts to help better understand the scope of this work. After that, the results of a literature review is shown. Finally, the general architecture of a transportation simulation platform is proposed

On Using the Cloud to Support Online Courses

The increasing interest of online learning is unquestionable nowadays, with MOOCs being taken by thousands of students. However, for online learning to go mainstream it is necessary that professors perceive that the effort required to prepare and manage an online course is manageable. Today, a myriad of inexpensive tools and services can be used to produce and manage online courses with unprecedented ease and without distressing the professor. For that, this paper proposes an architecture based on Cloud services that simplifies the process of managing an online course, from delivering on-demand fully customized remote laboratories to communication automation for student engagement and feedback gathering. This approach has been applied to produce, distribute and manage an Online Course on Cloud Computing with Amazon Web Services. The paper describes the methodology, tools and results of this experience to point out that it is possible to deliver online courses with automatically provisioned labs, with minimal management overhead, while still providing a high quality learning experience to a worldwide audience.Moltó, G.; Caballer Fernández, M. (2014). On Using the Cloud to Support Online Courses. Frontiers in Education Conference. 2014:330-338. doi:10.1109/FIE.2014.7044041S330338201

Using the cloud in lab classes

Computation laboratories are an essential part of educational institutions. The management of these laboratories presents some challenges to these institutions and to their IT department. The laboratories need to be prepared in advance, before the start of the cycle of study and usually entail high costs to the institutions. [...]Esta dissertação apresenta o desenvolvimento de uma aplicação que permite criar e gerir laborat órios de computação virtuais usando plataformas de Nuvem (Cloud). O uso de laboratórios virtuais é usual em áreas como a engenharia e ciências da computação. No entanto, a maioria das soluções existentes são proprietárias e exigem algum esforço de aprendizagem. [...

Internet Predictions

More than a dozen leading experts give their opinions on where the Internet is headed and where it will be in the next decade in terms of technology, policy, and applications. They cover topics ranging from the Internet of Things to climate change to the digital storage of the future. A summary of the articles is available in the Web extras section

Data Safety Contact Control Model of Cloud Computing

The progress of cloud computing are facing by many difficulties, which one of the most important challenge is data security problem. Everyone wants to use cloud computing due to cost saving and new agile business model which resulted by its dynamic, sharing, openness and highly centralized data. There complex data security challenges in cloud computing. From the view of users the research about data security focused on methodologies that ensuring the safety of data and storage. This paper provides a control model of a secured data access by on MAC access control. This is origin experience from the government cloud platform construction. This model provides the most important technical and management techniques with the security of data accessing. In shortly, the practical applications test showed that the model with corresponding control mechanism cloud meet the necessaries for reliable applications of government cloud. Keywords: Control Model of Access Control, Security of Cloud Computing, Access Control of Secured Data