مقاله انگلیسی رایگان در مورد استفاده از محاسبات ابری در یادگیری الکترونیکی – اسپرینگر ۲۰۱۷

With the rapid advancements in Information and Communications Technologies (ICT), the popularity of learning on the Internet and construction of e-learning environments is growing rapidly. Today, there are lots of paradigms for getting knowledge or learn through Internet. One of the most promising paradigms for education is e-learning. Elearning refers to the use of networked information and communications technologies and offers a wide range of new opportunities for the development of education and brought profound impact to teaching and learning methods. Today, e-learning has become one of the most popular teaching and learning methods by stretching the spatial and temporal barriers (Dong and Huang 2011). However, with the increasing access to ICT and the huge growth of the number of users, data and educational resources generated, e-learning systems have become more and more expansive in terms of hardware and software resources (computing, storage …) and many educational institutions cannot afford such investments (Paul and Santhi 2014). Indeed, with the daily rising trend on requirement’s dynamic changes in service, e-learning systems deployed in educational institution are facing many issues and challenges of optimizing large-scale resource management and provisioning (Paul and Santhi 2014). On the one hand, a poor or insufficient infrastructure can cause more damage than good to users and the learning experience (Bora and Ahmed 2013). Thus, educational institutions are obliged to evolve their e-learning infrastructure. Nevertheless, the infrastructure provisions that are necessary to provide a competitor service for a large amount of users clearly exceed the capabilities of a simple web server and. This leads to high the costs of the infrastructure establishment and institutions are unable to afford the costs needed. On the other hand, the demand of the teaching and learning resources (hardware and software resources) usually vary in a dynamic and very quick way and presents high peaks of activity. To attend flexible and dynamic requests of resources, it will be necessary to prepare a quite superior e-learning system than that required for the regular working of educational institutions (Fernández et al. 2012). To overcome these issues, cloud computing, that has been recently emerging as a key paradigm of the present century, is a new model for hosting resources and provisioning of services to e-learning systems. It provides a convenient, on-demand access to a centralized shared pool of computing resources that can be deployed by a minimal management overhead and with a great efficiency (El-Sofany et al. 2013). Cloud computing rises as a natural platform to provide support to elearning systems. Today, there is a growing trend regarding the research and exploitation of cloud computing to support e-learning process and many research works has been carried out in the domain of cloud-based e-learning (Huang and Liu 2013; Li et al. 2011; El Mhouti et al. 2016).