USING CLOUD COMPUTING ON E-LEARNING

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					    International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
       Web Site: www.ijettcs.org Email: editor@ijettcs.org, editorijettcs@gmail.com
Volume 1, Issue 2, July – August 2012                                          ISSN 2278-6856



                       USING CLOUD COMPUTING
                           ON E-LEARNING
                            Bhruthari G. Pund 1, Sanil S. Nair2 and Prajakta P Deshmukh3
                                              Prof. Ram Meghe Institute Of Technology,
                                                   Badnera, Amravati, maharashtra,
                                                               India.

                                                                  constantly and the development and the improvement of
Abstract: The looking education on the internet, the              the e-learning solutions is necessary. Also, the e-learning
wonderful web-based education environment has become one          systems need to keep the pace with the technology, so the
of the warm points on researching remote education. Interest      new direction is to use cloud computing. At present, it is
in Cloud Computing (IaaS, PaaS, SaaS) in the e-learning           common to access content across the Internet
arena is growing due to potential greater cost savings from
                                                                  independently without reference to the underlying hosting
scalable architectures and open source products, and the
                                                                  infrastructure. This infrastructure consists of data centers
possibility of higher learning outcomes. Cloud computing
provides a shared pool of computing resources that can be
                                                                  that are monitored and maintained around the clock by
rapidly and elastically provisioned and released based on         content providers. Cloud computing is an extension of
users’ demand to serve a wide and constantly expanding            this paradigm where the capabilities of applications are
range of information processing needs. The popularity of          exposed as services. Educational institutions are
learning on the internet, the construction of perfect web-        beginning to take advantage of existing applications
based learning environment has become one of the hot points       hosted on a cloud that enable end users to perform tasks
on researching remote education. It is envisioned that, in the    that have usually required site licensing, installation, and
near future, cloud computing will have a significant impact       maintenance of individual software packages. Many
on the educational and learning environment, enabling their       applications such as word processing, spreadsheets,
own users(i.e., learners, instructors, and administrators) to     presentations, databases and more can all be done inside a
perform their tasks effectively with less cost by utilizing the
                                                                  web browser, while the software and files are housed in
available cloud-based applications offered by the cloud
                                                                  the cloud. To provide one simple example, in the socially
service providers. Therefore, there is a need to redesign the
educational system to meet the needs better. . E-learning         conservative Gulf region (where females are reluctant to
systems usually require many hardware and software                be photographed), the accidental or malicious release of a
resources. There are many educational institutions that           female students photograph into the public domain could
cannot afford such investments, and cloud computing is the        have large consequences for her, her family, and the
best solution. We present several case studies for educational    institution or third-party that mishandled this data. A
clouds introduced by popular cloud providers which reflect        technical definition is "a computing capability that
the increasing interest in this new trend. We also discuss        provides an abstraction between the computing resource
future challenges to cloud education.                             and its underlying technical architecture (e.g., servers,
Keywords: Cloud computing, Distributed computing,                 storage, networks), enabling convenient, on-demand
grid computing, Scalability, utility computing.                   network access to a shared pool of configurable
                                                                  computing
1. INTRODUCTION                                                   resources that can be rapidly provisioned and released
With the evolution of technology, the number of services          with minimal management effort.
which migrate from traditional form to the online form
grows as well. For these specific services, an adequate           2. ARCHITECTURE   OF                            CLOUD
providing form must be found in the online environment,           COMPUTING PLATFORM
using the proper technologies, guaranteeing the access of         Cloud computing is a computation of provide hire
large number of users, fast and secure payment services           services to users.        To access powerful computing
(Ivan et al., 2009). Education is an important component          capabilities, regardless of the complexity of the
of life because it equips us with all that is needed to make      background, , the user can use a simple terminal . To get
our dreams come true. One of the most promising                   together the users' needs, which the back-end cloud
paradigms for education is e-learning. Cloud Computing            concerns care is the number of machines required to get
is a new paradigm that provides efficient network login to        collaboration. Now Google, Amazon and other companies
an appropriate pool of computing resources which can be           have built the cloud platform to provided services for
provided and released with just nominal assiduity and             their clients, include hundreds of back-end machines at
service providers reciprocity. Higher education was               least. It is obvious that cloud platform back-end is a large
acknowledged in time as one of the pillars of society             distributed system, rather than a single machine which
development. The need for education is increasing                 user interface displayed [15]. Cloud computing turn the

Volume 1, Issue 2 July-August 2012                                                                                 Page 202
   International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
       Web Site: www.ijettcs.org Email: editor@ijettcs.org, editorijettcs@gmail.com
Volume 1, Issue 2, July – August 2012                                          ISSN 2278-6856


hardware resources into virtual resources with virtual         combination                   of                  software.
machine monitor, and manage hardware resources with
virtual hardware. Cloud computing has been defined by
NIST [16] as a model for enabling convenient, on-
demand network access to a shared pool of configurable
computing resources that can be rapidly provisioned and
released with minimal management effort or service
provider interaction.

3. INVENTED SCENARIO
In this scenario cloud computing is being looked upon by
experts in various domains because of its advantages.
Cloud has been used in the business oriented unit and in
the current education system in India the teaching via
web is not so widely available and adapted. Even if it is         3.2. Services in cloud computing
available, it is provided at a very high cost. Cloud has       Infrastructure as a Service, One can get on-demand
generated many resources which can be used by various          computing and storage to host, scale, and manage
educational institutions and streams where their               applications and services using Microsoft data centers. In
existing/proposed web based learning systems can be            the previous generation of the information technology the
implemented at low cost.                                       data sharing which led the path for the knowledge
  3.1. Benefits of Cloud Computing                             sharing was not used by the users globally, in this
The advantages that come with cloud computing can help         generation the various streams have the knowledge of e-
resolving some of the common challenges one might have         Learning and the Mobile based learning. In this present
while supporting an educational institution [4].               context the usage of the central data centre is a easy
                                                               process for the education system however the cost of
   3.1.1. Cost                                                 implementation and the maintenance of the data storage
One can choose a subscription or in, some cases, pay-as-       space and also the load capability also software licensing
you go plan –whichever works best with that organization       depends on the real time usage of these systems. Business
business model. Overall, not just hardware costs, but also     streams can make revenue out of those expenses whereas
system management, licensing costs and fees can be             for educational institutions which really want to motivate
reduced as users only pay for the software they need           the learners and want to offer a quality education at
(concept of „on-demand software). User agreements and          affordable cost can achieve this by spending a large
contracts can be simplified, with the user only paying for     amount. This can be overcome by the present cloud
individual software instances and also avoiding the time       computing technology that is "Pay as Use" (PAU).
and cost of patches and updates.
   3.1.2. Flexibility                                          4. E-LEARNING & CLOUD COMPUTING
Infrastructure can be scaled to maximize investments.
Cloud computing allows dynamic scalability as demands          The cloud computing term was derived from the way the
fluctuate. Renting computer platforms and scalable power       Internet is often represented in network diagrams. Due to
makes eminent sense, particularly when institutions feel       the fact it involves the being of data centers that are able
the threat of the potential theft or destruction of computer   to provide services, for all the requests coming from the
hardware, such as the widespread looting of schools and        world wide spread clients, the cloud can be seen as a
offices by Iraqi troops in Kuwait during the first Gulf        exclusive access point (see figure 1)[8]. Internet has a
War.                                                           deep impact on the way we interact and work. It started of
   3.1.3. Accesibility                                         as a medium to exchange information between computers.
This help makes data and services publicly available           With increasing network speeds and wider penetration of
without make vulnerable sensitive information.                 Internet, software providers started moving their
                                                               applications to the Web, and started offering their
  3.1.4.The Client – The End User                              software’s as a service (SaaS). Organizations or
Everything ends with the client (mobile). The hardware         individuals could now use enterprise level software’s for a
components, the application and everything else                small fee without having to install them on local
developed for Cloud computing will be used in the client.      infrastructure, and without worrying about how to
Without the client, nothing will be possible. The client       maintain these applications. But all this while there was
could come in two forms: the hardware component or the         almost no innovation on how hardware infrastructure was
                                                               deployed or licensed. One either had to create an in-house
                                                               data center to deploy and manage their software systems,
                                                               or had to take servers on rent in a data-center managed by
                                                               someone. Cloud computing embraces cyber infrastructure,
Volume 1, Issue 2 July-August 2012                                                                              Page 203
   International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
       Web Site: www.ijettcs.org Email: editor@ijettcs.org, editorijettcs@gmail.com
Volume 1, Issue 2, July – August 2012                                          ISSN 2278-6856


and builds upon decades of research in networking,                  Flexibility - Infrastructure can be scaled to
distributed computing, net computing, effectiveness                    maximize investments. Cloud computing allows
computing, and web and software services. It reduced                   dynamic scalability as demands fluctuate.
information technology overhead for the end-user, greater           Accessibility - This help makes data and services
flexibility, reduced total cost of ownership, on demand                publicly available without make vulnerable
services[2].                                                           sensitive information.
                                                                    when speaking about data security, the service
                                                                       quality is crucial and the need of the backups is
                                                                       critical.
                                                                    For some applications, can be used even in the
                                                                       offline mode, so when the client goes back online
                                                                       a synchronization process is refreshing the data;
                                                                    In order to work with the cloud, only the Internet
                                                                       connection is required;
                                                                    there is no need to download or install a specific
                                                                       software.
                                                                    If the client computer crashes, there are almost no
                                                                       data lost because everything is stored into the
               Figure 1: Cloud computing                               cloud.
                                                                    The cost is low or even free in some cases. One
In recent years, cloud computing as a new kind of                      can choose a subscription or in, some cases, pay-
advanced technology accelerates the innovation for the                 as-you go plan –whichever works best with that
computer industry. Cloud computing is a computing                      organization business model.
model based on networks, especially based on the              Cloud Computing applications are mainly intended to
Internet, whose task is to ensure that users can simply use   help companies and individuals to stretch resources and
the computing resources on demand and pay money               work smarter by moving everything to the cloud. One of
according to their usage by a metering pattern similar to     the biggest promoters of the cloud computing is Google
water and electricity consumption. Therefore, it brings a     that already owns a massive computer infrastructure (the
new business model, where the services it provides are        cloud) where millions of people are connecting to. Today,
becoming computing resources [12]. Users do not require       the Google cloud can be accessed by Google Apps [6]
any special knowledge about the concept of Cloud              intended to be software as a service suite dedicated to
computing to connect their computers to the server where      information sharing and security. Google Apps covers the
applications have been installed and use them. Users can      following three main areas [8]:
communicate through Internet with remote servers. These             Messaging (Gmail, Calendar and Google Talk),
servers can exchange their computing slots themselves               Collaboration (Google Docs, Video and Sites) and
[13].                                                               Security (email security, encryption and
                                                                       archiving).
5. ADVANTAGES IN CLOUD COMPUTING
The aim of a grid computing architecture is to solve large    6. SERVICES IN CLOUD COMPUTING
tasks by using the advantage of parallelism and               Infrastructure as a Service:- One can get on-demand
concurrency, while the cloud computing is paying              computing and storage to host, scale, and manage
attention on relationship. Cloud computing becomes very       applications and services, using Microsoft data centers. In
popular because it moves the processing efforts from the      the previous generation of the information technology the
local devicesin the network to the data center facilities.    data sharing which led the path for the knowledge
Therefore, any device, could be able to solve difficult       sharing was not used by the users globally, in this
equations by simply passing the arguments to a service        generation the various streams have the knowledge of e-
running at the data center level that will be able to give    Learning and the Mobile based learning. In this present
back the results in a very small moment. In these             context the usage of the central data centre is a easy
conditions, the security of data and applications becomes     process for the education system however the cost of
a very major issue. Cloud computing is widely accepted        implementation and the maintenance of the data storage
today due to its key advantages:                              space and also the load capability also software licensing
     By using internet connected device with minimum         depends on the real time usage of these systems. Business
       s/w requirements, user can reach the same result       streams can make revenue out of those expenses whereas
       becaue of strong connection exists between the         for educational institutions which really want to motivate
       user and their personal computer.                      the learners and want to offer a quality education at
                                                              affordable cost can achieve this by spending a large


Volume 1, Issue 2 July-August 2012                                                                            Page 204
   International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
       Web Site: www.ijettcs.org Email: editor@ijettcs.org, editorijettcs@gmail.com
Volume 1, Issue 2, July – August 2012                                          ISSN 2278-6856


amount. This can be overcome by the present cloud             almost no innovation on how hardware infrastructure was
computing technology that is "Pay as Use" (PAU).              deployed or licensed. One either had to create an in-house
                                                              data center to deploy and manage their software systems,
Cloud computing comprises of three layers [5]:
                                                              or had to take servers on rent in a data-center managed by
      infrastructure as a service (IaaS)                     someone. The blended learning strategy should improve
      platform as a service (PaaS)                           the educational act. Moreover, the interactive content and
      software as a service (SaaS)                           virtual collaboration guarantee a high retention factor.
 A. IaaS
Infrastructure layer corresponds to IaaS infrastructure
                                                              8. BENEFITS OF CLOUD COMPUTING FOR
services, is the lowest layer of the network.Users can          E-LEARNING SOLUTIONS
household to provide standard services, including             E-learning is widely used today on different educational
computing power and storage resources. It turn the            levels: continuous education, company trainings,
memory, storage and computing power into a virtual            academic courses, etc. There are various e-learning
whole resource pool for the entire industry to provide the    solutions from open source to commercial. There are at
required of computing power and storage resources [5][6].     least two entities involved in an e-learning system: the
                                                              students and the trainers [3]. E-learning systems can use
 B. PaaS                                                      benefit from cloud computing using:
Platform layer correspond to PaaS (Platform as a service)      Infrastructure: use an e-learning solution on the
that made a higher level of abstraction on the base of Iaas   provider's infrastructure
layer. To Provides a development environment, test             Platform: use and develop an e-learning solution based
environment, server platforms and other services, users       on the provider's development interface
                                                               Services: use the e-learning solution given by the
can develop applications based on Internet and other
                                                              provider.
server’s service providers infrastructure, then share it to   A very big concern is related to the data security because
other users [7].                                              both the software and the data are located on remote
                                                              servers that can crash or disappear without any additional
 C. SaaS                                                      warnings. Even if it seems not very reasonable, the cloud
SaaS (Software as a service) is a software distribution       computing provides some major security benefits for
model, designed for web delivery, user can deploy and         individuals and companies that are using/developing e-
access through the Internet hosting. SaaS providers need      learning solutions, like the following:
to build information for all network infrastructure,
software, hardware, operating platform, and is
responsible for the implementation of all post-
maintenance and other services. The customers can
choose one or more services provided. Hardware devices
like PCs, notebooks, mobile phones, PDAs or other
devices or software applications like web browsers can be
used as a cloud client[7].

7. E-LEARNING BASED CLOUD COMPUTING
The e-learning cannot completely replace teachers; it is
only an updating for technology, concepts and tools,
giving new content, concepts and methods for education,           Figure 2: Cloud Computing Sample Architecture
so the roles of teachers cannot be replaced. The teachers
will still play leading roles and participate in developing
and making use of e-learning cloud[4]. Internet has had        A. Improved Improbability
a profound impact on the way we interact and work. It         It is almost impossible for any interested person (thief) to
started of as a medium to exchange information between        determine where is located the machine that stores some
computers. With increasing network speeds and wider           wanted data (tests, exam questions, results) or to find out
penetration of Internet, software providers started moving    which is the physical component he needs to steal in
their applications to the Web, and started offering their     order to get a digital asset.
software’s as a service (SaaS). Organizations or
individuals could now use enterprise level software’s for a
                                                               B. Virtualization
small fee without having to install them on local
                                                              Makes possible the rapid replacement of a compromised
infrastructure, and without worrying about how to
                                                              cloud located server without major costs or damages[8]. It
maintain these applications. But all this while there was

Volume 1, Issue 2 July-August 2012                                                                             Page 205
   International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
       Web Site: www.ijettcs.org Email: editor@ijettcs.org, editorijettcs@gmail.com
Volume 1, Issue 2, July – August 2012                                          ISSN 2278-6856


is very easy to create a clone of a virtual machine so the    resources is accumulated in traditional teaching model
cloud downtime is expected to be reduced substantially;       and distributed in different departments and domain.
 C. Centralized Data Storage                                  Through the use of virtualization technology, physical
Losing a cloud client is no longer a major incident while     server, storage and network form virtualization group for
the main part of the applications and data is stored into     being called by upper software platform.
the cloud so a new client can be connected very fast.         Virtualization technology separates the physical hardware
Imagine what is happening today if a laptop that stores       from operating system, which on one hand can make
the examination questions is stolen [3]. There are various    computing and storage capacity of the existing server into
e-learning solutions from open source to business. There      smaller size and re-integration, to improve the utilization
are at least two entities involved in an e-learning system:   and flexibility of IT resource; on the other hand can
the students and the trainers.                                provide a common interface for large-scale cloud
                                                              computing integration that enables the publication of
The students:                                                 calculation. The physical host pool is dynamic and
     Take online course                                      scalable [7].
     Take exams
     Send feedback                                           B. Software resource layer
     Send homework, projects                                 Is composed by operating system and middleware.
The trainers:                                                 Through middleware technology, a variety of software
     Deal with content management                            resources are integrated to provide a combined interface
                                                              for software developers, so they can develop a lot of
     Prepare tests
                                                              applications based on software resources and embed them
     Assess tests, homework, projects taken by students
                                                              in the cloud, and making them available for cloud
     Send feedback
                                                              computing users[4].
     Communicate with students (forums)
                                                               C. Resource management layer
Typically, e-learning systems are developed as spread
                                                              Is the key to achieve loose coupling of software resources
applications, but this is not necessary so. The design of a
                                                              and hardware resources. Through integration of
spread e-learning system includes software components,
                                                              virtualization and cloud computing scheduling strategy,
like the client application, an application server and a
                                                              on-demand free flow and distribution of software over
database server (see figure) and the necessary hardware
                                                              various hardware resources can be achieved.
components       (client     computer,      communication
infrastructure and servers).                                  D. Service layer-
                                                              Has three levels of services namely, SaaS (Software as a
                                                              service), Paas (Platform as a service), IaaS (Infrastructure
                                                              as a service). In SaaS, cloud computing service is
                                                              provided to customers. As is different from traditional
                                                              software, users use software via the Internet, not to need a
                                                              one-time purchase for software and hardware, and not to
                                                              need to maintain and upgrade, simply paying a monthly
                                                              fee[4]. The platform layer of e-Learning cloud With the
                                                              support of the powerful hardware, platform layer carries
                                                              out the tasks of data storage, computing and software
                                                              development, and it can even achieve the tasks of
                                                              completion of the original mass data storage, business
           Figure 3: E-learning system[17]                    intelligence processing and so on which have been
                                                              difficult to complete. Users can choose the devices and
                                                              the number of devices according to the complexity of
9. CLOUD   BASED                       E-LEARNING             dealing with the content. Virtualization technology
ARCHITECTURE                                                  enables the platform to show a strong level of flexibility
The e- learning cloud architecture can be divided into :      [7].
 A. Infrastructure resources Layer                            E. Application layer
                                                              Are the specific applications of integration the teaching
The base layer of e-learning cloud shares IT infrastructure
                                                              resources in the cloud computing model, including
resources and connects the huge system pool together to
                                                              interactive courses and sharing the teaching resources.
provide services. Cloud Computing allows the hardware
                                                              The interactive programs are mainly for the teachers,
layer to run more like the internet, to make the hardware
                                                              according to the learners and teaching needs, taken full
resources shared and accessed as data resources in secure
                                                              advantage of the underlying information resources after
and scalable way[4]. Information infrastructure contains
                                                              finishing made, and the course content as well as the
Internet/Intranet,    system     software,     information
                                                              progress may at any time adjust according to the
management system and some s/w and h/w; teaching

Volume 1, Issue 2 July-August 2012                                                                             Page 206
   International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
       Web Site: www.ijettcs.org Email: editor@ijettcs.org, editorijettcs@gmail.com
Volume 1, Issue 2, July – August 2012                                          ISSN 2278-6856


feedback, and can be more effectiveness than traditional     benefit from lower up-front capital costs and less hands-
teaching. Sharing of teaching resources include teaching     on management, essentially" the economic model that
material resources, teaching information resources (such     makes cloud computing such an intriguing concept".
as digital libraries, information centers), as well as the   C. Hybrid cloud
full sharing of human resources. This layer mainly           A hybrid cloud environment consisting of multiple
consists of content production, educational objectives,      internal and/or external providers" will be typical for
content delivery technology, assessment and management       most enterprises".      A hybrid cloud can describe
component [11]. The applications software or services        configuration combining a local device, such as a Plug
provided by a school or university, the students to pay in   computer with cloud services. It can also describe
the similar way of on-demand access, according to the        configurations combining virtual and physical, collocated
amount to calculate the cost, complete the production,       assets—for example, a mostly virtualized environment
marketing, trading and management..E-Learning cloud          that requires physical servers, routers, or other hardware
environment provides user-oriented ubiquitous adaptive       such as a network appliance acting as a firewall or spam
hardware resources, computing environment and software       filter.
services. In e-learning cloud space, users can access to
digital services transparently at any time in anywhere.
The users can obtain the necessary network and
computing services very naturally at any position. The
information space and physical space will be integrated
because of ubiquitous computing capability. And the
ubiquitous information terminals together with the
embedded system equipment will be the vehicles of e-
commerce in the future [7].
10. CHARACTERISTICS
1) In general, cloud computing customers do not possess
the physical infrastructure, instead avoiding funds
spending by renting usage from the third party supplier.
2) They consume resources as a service and pay only for
the resources that they use.
3) Sharing “perishable and intangible” computing power             Figure 4: shows types of cloud computing
among multiple tenants can prove utilization rates, as
servers are not unnecessarily left idle.                     12. GRID COMPUTING
A side effect of this approach is that overall computer      Grid computing is a term for either of two broad
usage rises dramatically, as customers do not have to        subcategories of distributed computing:
engineer for peak load limits.
                                                             A. Online computation or storage offered as a service
11. CLOUD COMPUTING TYPES                                    supported by a pool of distributed computing resources,
A. Public Cloud                                              also known as utility computing, on-demand computing,
Public cloud or external cloud describes cloud computing     or cloud computing. Data grids provide controlled
in the traditional mainstream sense, whereby resources       sharing and management of large amounts of distributed
are dynamically provisioned on fine grained, self services   data, often used in combination with computational grids.
basis over the internet via web applications, web services
from an offsite third party provider who shares resources    B. The creation of a "virtual supercomputer" composed
and bills on a fine-grained utility computing basis.         of a network of loosely-coupled computers, acting in
B. Private cloud                                             concert to perform very large tasks. This technology has
                                                             been applied to computationally-intensive scientific,
Private cloud and internal cloud are neologisms that some
                                                             mathematical, and academic problems through volunteer
vendors have recently used to describe offerings that
                                                             computing, and it is used in commercial enterprises for
emulate cloud computing on private networks. These
                                                             such diverse applications as drug discovery, economic
products claim to "deliver some benefits of cloud
                                                             forecasting, seismic analysis, and back-office data
computing without the pitfalls", capitalizing on data
                                                             processing in support of e-commerce and web services.
security, corporate governance, and reliability concerns.
They have been criticized on the basis that users "still
have to buy, build, and manage them" and as such do not




Volume 1, Issue 2 July-August 2012                                                                          Page 207
      International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
       Web Site: www.ijettcs.org Email: editor@ijettcs.org, editorijettcs@gmail.com
Volume 1, Issue 2, July – August 2012                                          ISSN 2278-6856


                                                                  application in cloud computing will surely help in the
                                                                  development of the education offered to people which
                                                                  will increase the quality of education offered to them.
                                                                  Cloud based education will help the students, staff,
                                                                  Trainers, Institutions and also the learners to a very
                                                                  high extent and mainly students from rural parts of the
                                                                  world will get an opportunity to get the knowledge
                                                                  shared by the professor on other part of the world.
                                                                  Even governments can take initiatives to implement
                                                                  this system in schools and colleges in future and we
                                                                  believe that this will happen soon.
        Figure 5: Structure of Grid Computing [18]
                                                               REFERENCES
13.     DIFFERENCE BETWEEN                        CLOUD         [1] DeCoufle B. The impact of cloud computing in
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grid node can apply for resource from other nodes, and         [2] “Cloud Computing – Issues, Research and
every node should contribute resource to the grid. The              Implementations” Mladen A. Vouk,Department of
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In a cloud environment, computing resources, such as                Xiaodi Huang
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underlying hardware infrastructure and made available to            and Analysis of Cloud Computing research and
a workload.                                                         application
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task, and is difficult to automated scale. Cloud computing          World 2009,12:p19-22
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14. CONCLUSIONS                                                [8] ” Using Cloud Computing for E-learning Systems”,
The e-learning solution development cannot disregard the            PAUL POCATILU, FELICIAN ALECU, MARIUS
cloud computing trends. Cloud computing for e-learning              VETRICI Economic Informatics Department,
solutions influences the way the e-learning Software                Academy of Economic Studies 6 Piata Romana,
projects are managed. There are explicit tasks that deal            Secot 1, Bucharest,ROMANIA ppaul@ase.ro,
with finding providers for cloud computing, depending on            alecu.felician@ie.ase.ro, ariusvetrici@softmentor.ro
the needs. Also, the cost and risk management influences       [9] Minutoli, G. Fazio, M. Paone, M. Puliafito, A.
the way the e-learning solutions based on cloud                     Engineering Fac, Univ. of Messina, Messina, Italy
computing are managed. The amount of some public                    Virtual Business Networks With CloudComputing
clouds across multiple legal jurisdictions further                  and Virtual Machines: IEEE/ICUMT Oct 2010.
complicates this subject; These concerns are considered        [10] Uhlig,R., Neiger, G. Rodgers, D. S.M. Kagi,
key obstacles to broader acceptance of cloud computing,             A.Leung, F.H. Smith : Intel Corp., USA : Intel
making them areas of active research and argue among                visualization technology IEEE Computer Society :
cloud computing practitioners and advocate. There are               May 2005.
many benefits from using the cloud computing for e-            [11] H. Xin-ping, Z. Zhi-mei           D. Jian, “Medical
learning systems. Also, there are some disadvantages that           Informatization Based on Cloud Computing
have to be taken into account. It has the major span to             Concepts and Techniques”, Journal of Medical
change the whole education system. In present situation             Informatics, 2010, Vol.31, No.3, pp.6-9.
the e-learning is getting the popularity and this

Volume 1, Issue 2 July-August 2012                                                                            Page 208
   International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
       Web Site: www.ijettcs.org Email: editor@ijettcs.org, editorijettcs@gmail.com
Volume 1, Issue 2, July – August 2012                                          ISSN 2278-6856


[12] Z. Chengyun, “Cloud Security: The security risks of
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[13] B. Hayes, "Cloud computing," Comm. Acm, vol. 51,
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[14] E. Tuncay, "Effective use of Cloud computing in
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[15] W.M. Zheng. Opportunities and Challenges to
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[16] P. Mell, and T. Grance. The NIST Definition of
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[17] “Cloud Computing Benefits for E-learning
Solutions” Paul POCATILU, PhD, Associate Professor
      Department of Economic Informatics Academy of
      Economic Studies, Bucharest, Romania
      E-mail: ppaul[at]ase[dot]ro
[18]http://www.google.co.in/search?num=10&hl=en
   &site=imghp&tbm=isch&source=hp&biw=&bih=
   &q=grid+computing&btnG=Search+by+image




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Description: International Journal of Emerging Trends & Technology in Computer Science (IJETTCS) is an online Journal in English published bimonthly for scientists, Engineers and Research Scholars involved in computer science, Information Technology and its applications to publish high quality and refereed papers. Papers reporting original research and innovative applications from all parts of the world are welcome. Papers for publication in the IJETTCS are selected through rigid peer review to ensure originality, timeliness, relevance and readability. The aim of IJETTCS is to publish peer reviewed research and review articles in rapidly developing field of computer science engineering and technology. This journal is an online journal having full access to the research and review paper. The journal also seeks clearly written survey and review articles from experts in the field, to promote intuitive understanding of the state-of-the-art and application trends. The journal aims to cover the latest outstanding developments in the field of Computer Science and engineering Technology.