ICVL V. Nedeva,Sn Dineva Models And Methodologies paper18

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List of Papers - Technologies Number. Authors. Paper. 1 Sengupta Souvik, Dasgupta Ranjan Paper Title: Identifying, Analysing and Testing of Software Requirements in Learning Management System View Paper PDF 2 Sorin Ionitescu Paper Title: On Using Augmented Reality Technologies to Improve the Interaction between Real and Virtual Spaces View Paper PDF 3 Sorin Ionitescu Paper Title: COLLADA Based Interoperability Assurance for Virtual Reality Assets View Paper PDF 4 Iuliana Dobre Paper Title: An Overview of the Web-Based Communication Tools Used for Increasing the Web-Based Education Efficiency View Paper PDF 5 Iuliana Dobre Paper Title: Web-Based Training Systems Evaluation and Measurement of their Quality Component View Paper PDF 6 Constantin Lucian Aldea, Gheorghe- Cosmin Spîrchez Paper Title: Administering Computer Networks Using Windows Management Instrumentation Technology

Transcript of ICVL V. Nedeva,Sn Dineva Models And Methodologies paper18

List of Papers - Technologies

Number. Authors. Paper.

1 Sengupta Souvik, Dasgupta Ranjan

Paper Title: Identifying, Analysing and Testing of Software Requirements in Learning Management System

View Paper PDF

2 Sorin Ionitescu

Paper Title: On Using Augmented Reality Technologies to Improve the Interaction between Real and Virtual Spaces

View Paper PDF

3 Sorin Ionitescu

Paper Title: COLLADA Based Interoperability Assurance for Virtual Reality Assets

View Paper PDF

4 Iuliana Dobre

Paper Title: An Overview of the Web-Based Communication Tools Used for Increasing the Web-Based Education Efficiency

View Paper PDF

5 Iuliana Dobre

Paper Title: Web-Based Training Systems – Evaluation and Measurement of their Quality Component

View Paper PDF

6 Constantin Lucian Aldea, Gheorghe-Cosmin Spîrchez

Paper Title: Administering Computer Networks Using Windows Management Instrumentation Technology

View Paper PDF

7 Daniela Şchiopu

Paper Title: Speech Recognition Neural Methods in E-learning Environments .

View Paper PDF

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Gheorghe-Cosmin Spîrchez Loredana Anne-Marie Bǎdescu Costel Aldea Sergiu Rǎcǎşan

Paper Title: Research on size fasteners of wooden structures for construction with programming software Heco Schrauben

View Paper PDF

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Calin Neamtu, Radu Comes, Razvan Mateescu, Rares Ghinea,

Filip Daniel

Paper Title: Using virtual reality to teach history

View Paper PDF

10 Lecic Dusanka Paper Title: Distance Learning for GIS in Serbia

View Paper PDF

11 Veselina Nedeva, Snejana Dineva

Paper Title: New learning innovations with Web 4.0

View Paper PDF

12 Veselina Nedeva, Zlatin Zlatev, Svetoslav Atanasov

Paper Title: Effective Resources Use for Virtual Laboratories through Cloud Computing ans Services

View Paper PDF

13 Eftimie Simona Georgiana, Mărgăriţoiu Alina

Paper Title: Distance counselling needs. Study case – south zone, Romania

View Paper PDF

14 Petru Todos, Nicolae Secrieru, Stela Guvir

Paper Title: Tempus Project «Creating Digital Network Universities in Applied Science Themes and Economics in Moldova (CRUNT)»

View Paper PDF

15 Lecic Dusanka

Paper Title: E-learning for information systems for human resource management business systems

View Paper PDF

16 Alexis Daj

Paper Title: New Technologies and Requirements for Marketing Education in the Era of Internet of Things (Iot): The Need for University-Industry Linkages in Romania

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List of Papers - Models & Methodologies

Number. Authors. Paper.

1 Marin Vlada Paper Title: 2012 The Alan Turing Year

View Paper PDF

2 Grigore Albeanu

Paper Title: Generative Techniques for Building Virtual Objects

View Paper PDF

3 Mihaela Oprea

Paper Title: On the Use of Educational Ontologies as Support Tools for Didactical Activities

View Paper PDF

4 Indika Perera, Colin Allison, Alan Miller

Paper Title: Effective Training for Policy Based Management of 3D Multi User Learning Environments

View Paper PDF

5 Alina-Gabriela Tunea

Paper Title: Tabu Search in Genetic Algorithm for Protein Folding Simulations in the 2D HP model

View Paper PDF

6 Olimpius Istrate, Simona Velea

Paper Title: Learning Through Projects in Virtual Environments Designed for Adult Training

View Paper PDF

7

Antoniu Ştefan Ioana Andreea Stănescu, Ion Roceanu, Theo Lim

Paper Title: Applying Interoperability in Serious Games Environments

View Paper PDF

8

Giovanni Fulantelli, Davide Taibi, Valentina Dal Grande,Manuel Gentile, Mario Allegra

Paper Title: E-learning strategies for VET teachers based on active cooperation with labour market operators

View Paper PDF

9 Eniko Elisabeta Tolea Paper Title: From Course Management to Workflows

View Paper PDF

10 Alin Zamfiroiu

Paper Title: Means of Data Introduction for Mobile Learning Applications

View Paper PDF

11 Corina Silvia Micu, Raluca Sinu

Paper Title: Web-Based Methods and Tools in Teaching Translation and Interpreting

View Paper PDF

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Maria Magdalena Popescu, Margarida Romero, Mireia Usart

Paper Title: Using Serious Games in adult education Serious Business for Serious People-the MetaVals game case study .

View Paper PDF

13 Ramona Henter, Ecaterina Maria Unianu

Paper Title: Metacognition In On-Line Foreign Language Learning

View Paper PDF

14 Loyola y Blanco José A.

Paper Title: Ontological Framework in in Integrated SOI (Structure of Intellect)-Touring Machine-Kant Knowledge System

View Paper PDF

15 Loyola y Blanco José A.

Paper Title: Modeling a Virtual Learning Environment as States of a Touring Machine

View Paper PDF

16 M. Mahdi Barati Jozan, Fattaneh Taghiyareh, Hesham Faili

Paper Title: An Inversion-based Genetic Algorithm for Grouping of students

View Paper PDF

17 Süleyman Yaldiz, Ulvi Şeker, Nicoleta Alina Andreescu

Paper Title: Curriculum Evaluation of Machinery Training Department

View Paper PDF

18 Dineva S., Nedeva V. Paper Title: Cloud Computing And High Education

View Paper PDF

19 Ducheva Z, Dineva S, Pehlivanova M.

Paper Title: Evaluation of Certain Aspects of Electronic and Blended Learning (Teachers Opinion)

View Paper PDF

20 Krastev Kr. Yorgova R., Dineva S.

Paper Title: Analyzing Factors That Made E-Learning Successful .

View Paper PDF

21 Silviu Dumitrescu

Paper Title: Usage of Modern Technologies to Improve Web Based E-Learning Applications .

View Paper PDF

22 Elena Railean

Paper Title: An overview of open, free and affordable textbooks .

View Paper PDF

23 Evgeniya Budenkova

Paper Title: Methodology of Computer-Assisted Cooperative Learning Based on the Materials of the Multicultural Collaborative Programme “STEP into the Global Classroom”.

View Paper PDF

24 Aileni Raluca Maria

Paper Title: The 3D representation for learning used in the garment development .

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25 Oana Popa, Felicia Bucur

Paper Title: ICT in the Romanian Compulsory Educational System. Expectations vs Reality .

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26 Mărgăriţoiu Alina, Eftimie Simona Georgiana

Paper Title: Teachers’ perception concerning their technology competencies .

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27 Margarida M. Pinheiro, Dora Simões

Paper Title: Collaborative E-learning Methodologies: an Experience of Active Knowledge in ICT Classrooms .

View Paper PDF

28 Georgeta-Bianca Spîrchez

Paper Title: Free Access to Legal Resources on the Internet .

View Paper PDF

29 Laura Poţincu (Mureşan), Cristian-Romeo Poţincu

Paper Title: The analysis of corporate social responsibility for the education of consumers .

View Paper PDF

30 Laura Poţincu (Mureşan), Cristian-Romeo Poţincu

Paper Title: The education of banking services consumers, a requirement of corporate social responsibility .

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Authors Index

Aileni Raluca Maria, 209,410

Alan Miller, 74

Albeanu Grigore, 62

Aldea Constantin Lucian, 287, 299

Allegra Mario, 100

Andreescu Nicoleta Alina, 162

Atanasov Svetoslav, 322

Bǎdescu Loredana Anne-Marie, 299

Băicoianu Alexandra, 373

Balica A.N., 413

Banu Simona Maria, 380

Becheru Petru-Ioan, 401

Bogdan Crenguta M., 28

Buche Cédric, 39

Bucur Felicia, 213

Budenkova Evgeniya, 202

Butnariu Silviu, 46

Ciobanu (Iacob) Nicoleta Magdalena, 387

Colin Allison, 74

Coman Mihaela, 423, 429

Comes Radu, 303

Daj Alexis, 345

Dal Grande Valentina, 100

Dimitriu Sebastian, 373

Dinescu Luminita, 447

Dineva Snejana, 171, 177, 183, 316

Dinica Maria, 447

Dobre Iuliana, 273, 280

Drobotă Florin-Robert, 394

Ducheva Z., 177

Dumitrescu Silviu, 190

Eftimie Simona Georgiana, 220, 329

Fauvel Caroline, 39

Filip Daniel, 303

Florea Monica, 423, 429

Fulantelli Giovanni, 100

Gentile Manuel, 100

Ghinea Rares, 303

Gîrbacia Florin, 46

Guvir Stela, 333

Hamza-Lup Felix G., 27, 34

Henter Ramona, 135

Hesham Faili, 152

Hoareau Charlotte, 39

Ionitescu Sorin, 262, 267

Istrate Olimpius, 88

JozanM. Mahdi Barati, 152

Krastev Kr., 183

Le Corre Frédéric, 39

Lecic Dusanka, 311, 339

Lim Theo, 93

Loyola y Blanco José A., 140, 147

Mărgăriţoiu Alina, 220, 329

Marinescu Daniela, 373

Mateescu Razvan, 303

Micu Corina Silvia, 118

Miron Cristina, 447

Neamtu Calin, 303

Nedeva Veselina, 171, 316, 322

Nurgalieva Gul K., 433

Oprea Mihaela, 67

Orman Alex, 46

Page Benjamin, 34

Pehlivanova M., 177

Perera Indika, 74

Pinheiro Margarida M., 226

Pop Anisoara, 453, 459

Popa Oana, 213

Popescu Maria Magdalena, 125

Popovici Dorin M., 27

Poţincu (Mureşan) Laura, 237, 244

Poţincu Cristian-Romeo, 237, 244

Pupezescu Valentin, 360

Querrec Ronan, 39

Rǎcǎşan Sergiu, 299

Rădescu Radu, 353, 360

Railean Elena, 195

Ranjan Dasgupta, 253

Robu D.N., 413

Roceanu Ion, 93

Romero Margarida, 125

Sandu F., 413

Şchiopu Daniela, 293

Secrieru Nicolae, 333

Seitan Adrian, 27

Şeker Ulvi, 162

Simões Dora, 226

Sinu Raluca, 118

Souvik Sengupta, 253

Spîrchez Georgeta-Bianca, 234

Spîrchez Gheorghe-Cosmin, 287, 299

Stănescu Ioana Andreea, 93

Ştefan Antoniu, 93

Stoica Ioana, 441

Svab S.R., 413

Taghiyareh Fattaneh, 152

Taibi Davide, 100

Todos Petru, 333

Tolea Eniko Elisabeta, 107

Tudorica Daniela, 367

Tunea Alina-Gabriela, 81

Unianu Ecaterina Maria, 135

Usart Mireia, 125

Vasilescu Anca, 394

Velea Simona, 88

Vlada Marin, 55

Yaldiz Süleyman, 162

Yorgova R. , 183

Zamfiroiu Alin, 112

Zlatev Zlatin, 322

Cloud Computing And High Education

Dineva S.1, Nedeva V. 1

(1) Faculty of Engineering and Technology of Trakia University,

Gr.Ignatiev str. 38, Yambol, Bulgaria [email protected], [email protected]

Abstract The quality of education is the policy and main goal of any country and government. The cloud computing solve many problems and open many opportunities to the education establishments. The offered by cloud providers multimedia interactive lessons holds great promise for improving the quality of education by the ability to illustrate ideas with visual, audio, text, or any combination of media and in that way to improve the level of aquired knowledge. Key words: cloud computing, education, distance education, e-learning

1. Introduction “Cloud” is the most hyped term in the IT industry right now. “Cloud” computing – a relatively recent term, builds on decades of research in virtualization, distributed com- puting, utility computing, and more recently networking, web and software services (Vouk, 2008). One of definitions for a “cloud” OS is simply a simplified operating system that runs just a web browser, providing access to a variety of web-based applications that allow the user to perform many simple tasks without booting a full-scale operating system (Betonio, 2011). A study by McKinsey (the global management consulting firm) found that there are 22 possible separate definitions of cloud computing. A more commonly used definition describes it as clusters of distributed computers which provide on-demand resources and services over a networked medium (usually the Internet) (Sultan, 2010). At the view point of the National Institute of Standards and Technology (NIST, www.microsoft.com/educloud), cloud computing means the following:

- On-demand service - can get what you need when you need it. - Broad network access - the cloud brings network-based access to, and management of,

software and services - meaning access is anywhere, anytime. - Resource pooling - a large pool of users shares location-independent resources and costs

in an environmentally sustainable way. - Flexible resource allocation - as demands fluctuate, cloud services can scale rapidly. You

don’t have to worry about bringing new servers online or reallocating resources. - Measured service - most cloud usage is metered, often per user or per hour. Microsoft

offers Microsoft Live@edu, a free option designed specifically for education institutions. IEEE alos provides free educator programs and services to help facilitate and support knowledge sharing in the engineering sciences and research academia circles (http://www.ieee.org/education_careers/ educators.html?WT.mc_id=rfm_edu).

2. How cloud computing transforms education 2.1 Cloud services Three main types of services can be offered by the cloud:

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Software as a Service (SaaS): applications are delivered through the medium of the Internet as a service. It helps organizations with limited IT resources to deploy and maintain needed software in a timely manner while, at the same time, reducing energy consumption and expense. Instead of installing and maintaining software, you simply access it via the Internet, freeing yourself from complex software and hardware management.

Platform as a Service (PaaS): The operating environment in which applications run. Platform as a Service (PaaS) is a way to rent hardware, operating systems, storage and network capacity over the Internet. Platform as a Service (PaaS) is an outgrowth of Software as a Service (SaaS), a software distribution model in which hosted software applications are made available to customers over the Internet (Rouse, 2010).

A famoust cloud Computing Operating Systems are: 1. Glide OS - Glide is a free suite of rights-based productivity and collaboration

applications with 30GBs of storage. 2. Amoeba OS - is an advanced Online Operating System. Log in to your free account and

join a cloud computing revolution that begins with great apps like Shutterborg, Exstream and Surf.

3. MyGOYA - is a free online operating system. Your own personal desktop can be accessed from any Internet PC in the world and includes e-mail, chat, filesharing, calendar and an instant messenger. Manage your contacts from anywhere in the world.

4. Kohive - is an online desktop where you can easily collaborate with others 5. ZimdeskOS - is your computer on the web – the entire functionality of a PC – online.

There is nothing to install. A web browser and internet connection are all you need to access your desktop, files and favourite applications. You can access your data anytime from anywhere, from any PC.

6. Ghost Cloud Computing - is a leading company in the cloud computing industry that offers individuals and businesses file storage and apps in the cloud to enable secure personal computing from any device; can upload data of any type to your cloud storage from any device; can edit documents and pictures directly online within Ghost portal. It also offers full mobile support; can browse your file and folders from your cellular device just like a USB flash drive.

7. Joli OS - is a free and easy way to turn any computer up to 10 years old into a cool new cloud device.

8. Cloudo - is a free cloud operating system that lives on the Internet, right in your web browser. This means that you can reach your documents, photos, music and all other files no matter where you are, from any computer or mobile phone.

9. CorneliOS - The CorneliOS Web OS is an easy-to-use, multi-user and cross-browser “Web Desktop Environment”, “Web Operating System” or “Web Office” and comes with a set of cool applications.

10. Lucid Desktop - first web desktop that offers this technology. Lucid comes with lots of applications. You can browse photos, listen to music, and edit documents. It also comes with an RSS feed reader, some games, a calculator, and a bash-like terminal application. You can install additional third-party applications.

11. EyeOS - eyeOS is one of the most used WebOSes which is released under the AGPLv3 license and only needs Apache + PHP5 + MySQL to run.

12. Startforce - can run Windows apps such as MS Office, Adobe Acrobat and Quickbooks, stitch in web apps such as Salesforce.com, Google or your company’s intranet web apps.

A Web Operating System is a Web platform which allows the user to use a virtual Desktop through a web browser rather than using any particular local operating system (Teylor F. 2010). Combining a browser with a basic operating system allows the use of cloud computing, in which

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applications and data “live and run” on the Internet instead of on the hard drive. This is also referred to as platform as a service (PaaS) and Software as a service (SaaS). A cloud OS can be installed and used together with other operating systems, or can act as a standalone operating system. When used as a standalone operating system, hardware requirements can be very low (Betonio, 2011).

Infrastructure as a Service (IaaS): The on-demand data centers. There are flexible options about which services to obtain in the cloud and which to keep on-site. For example, with SaaS, you can add services, like e-mail, affordably. With PaaS, you can deliver services broadly without having to manage the infrastructure. With IaaS, you get pay-as-you-go data center capacity for adding CPUs, storage, networking, or Web hosting (www.microsoft.com/educloud). Many colleges do not have sufficient hardware or software to give students a complete learning experience. This problem is especially pronounced in the technical fields. Outsourcing some capabilities to the cloud makes the most of what’s on-site by freeing time, budget, and people. However, with SaaS and IaaS, a limited budget will still allow students access to the latest technologies on offer (fig.1). Simulating those complex weather patterns and running those complicated algorithms will no longer be something that only students at the top-of-the institutions can do (Sourya, 2011).

Figure 18 Simplified structure of the main users of IT services in a typical university now using the

services of cloud computing (Sultan N. 2010)

2.2 Cloud benefits for education The potential of cloud computing for improving efficiency, cost and convenience for the educational sector is being recognized by a number US educational (and official) establishments (Fox, 2009). Cloud benefits for education are obtained through (www.microsoft.com/educloud):

- Flexible services - Drive innovation with data services in the cloud that students, teachers, faculty, and staff can reuse. Offer your own data mashups on a portal.

- Infrastructure - Get all the IT resources you need, only when you need them, managed securely and predictably. And pay for only what you use.

- Applications and content - Rather than waiting in the software procurement line, get hosted software, datasets, and services so fast you’ll have plenty of time to work on your mission.

- Policies and regulations - Proceed carefully, but note how cloud computing can help you meet your institution’s compliance requirements.

- Creative IT - Free your IT department from a keep-the-lights-on approach to foster some creative problem solving that can help teachers better engage their students.

Cloud computing has a prominent role to play in the classrooms of tomorrow. Cloud computing can democratize education. For example, many schools suffer from low graduation rates directly attributable to insufficient infrastructure – shorthanded staff, tiny classrooms, lack of teachers (Sourya, 2011). Cloud computing solutions can solve many of these problems.

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Typically, the cloud computing infrastructure resides in a large data center and is managed by a third party, who provides computing resources as if it were a utility such as electricity—accessible by anyone, anywhere with an Internet connection (Paul et al, 2008). Some countries are already moving in this direction. The Higher Education Funding Council for England announced a plan to allocate £12.5 million to a new program that will fund shared services in cloud computing at colleges and universities across the country (Sourya, 2011). In October 2 0 0 7 , G o o g l e a n d I B M j o i n t l y announced the academic cloud computing initiative with six U.S. research universities: Carnegie Mellon University, Massachusetts Institute of Technology, Stanford University, the University of California–Berkeley, the University of Maryland, and the University of Washington. As part of this initiative, IBM and Google have dedicated a large cluster of several hundred computers for use by faculty and students at the participating institutions. By making these resources available, the companies hope to encourage faculty adoption of cloud computing in their research and also integration of the technology into the classroom. (Paul et al, 2008).

Cloud computing will affect education by providing instructors, students, and others with a dramatic new environment for presentations - i.e., they will no longer be bound by the limits of illustrating processes on chalkboards or in slide presentations. The offered by cloud providers multimedia interactive lessons holds great promise for improving the quality of education by providing the ability to illustrate ideas with visual, audio, text, or any combination of media and in that way to improve the level of aquired knowledge (fig.2).

Figure 19. Correlation between level of aquire knowledge and instructional design (Uskov V. 2010)

The cloud helps ensure that students, teachers, faculty, parents, and staff have on-demand access to critical information using any device from anywhere (www.microsoft.com/educloud). With cloud-based education tools, the whole world can learn from the best (Sourya, 2011). In

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general, there are two primary ways in which cloud clusters can be used. In one mode, the cloud cluster simply hosts a user’s application, which is typically provided as a Web service accessible to anyone with an Internet connection. In the consumer realm, services such as Google Maps, Gmail, and YouTube can already be thought of as “cloud applications.” The second mode may be thought of as “batch processing,” where the user transfers a large amount of data over to the cloud cluster along with associated application codes for manipulating the data. The cloud cluster executes the application code, and the results are returned to the user. (Paul et al, 2008). In our faculty we already applied internet based multimedia lessons from cloud provider into the classroom and that have great success of acceptance amomg students (fig.3).

Figure 20. Using cloud based multimedia lessons in class, in FTT - Yambol

2.3 New Cloud Computing Services in education The first broad-based collaborative project for the cloud by a global professional association will introduced several new products and services in education (Kowalenko, 2012):

- a website - A Web portal to all things related to IEEE cloud computing. The portal includes news about the cloud computing initiative’s progress, articles from the IEEE Xplore digital library, conferences sponsored by IEEE and other organizations, standards, educational materials, and interviews with experts;

- conferences - organized by the IEEE Computer Society have already been scheduled: IEEE Cloud 2012, being held from 24 to 29 June in Honolulu, and IEEE CloudCom 2012, taking place from 3 to 6 December in Taipei, Taiwan. Other IEEE conferences will include a session or two covering the field. An IEEE Cloud Congress will be held every year or two. Congresses are under way in Asian, European, and Latin American cities.

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One congress is scheduled to be held in Shenzhen, China, from 8 to 11 November, and another in Porto Alegre, Brazil, from 26 to 27 December;

- continuing education courses - IEEE is developing several e-learning courses. Given by experts, the courses offer professional development hours and continuing education units. Some courses will charge a nominal fee, while others will be free.;

- publications - An online-only quarterly journal and a magazine are to debut next year. Cloud Computing Letters, designed for rapid dissemination of original, cutting-edge ideas and significant contributions, is to be available in 2014.;

- standards, and a platform for testing cloud computing applications - IEEE plans to explore involves developing environments for creating and testing protocols for the IEEE P2302 Draft Standard for Intercloud Interoperability and Federation [see “Standards for Seamless Cloud Computing”]. To that end, IEEE wants to partner with governments, universities, and research institutions around the world that already have cloud computing resources. The goal is to create a well-connected, standards-based platform.

3. Conclusions We expect further development and utilization of cloud services in the future. Hopefully that will increase the level of education quality offered by the facuylty as well as the research work of students and academic stuff.

4. References Paul T. Jaeger, Jimmy Lin & Justin M. Grimes (2008): Cloud Computing and Information Policy: Computing

in a Policy Cloud?, Journal of Information Technology & Politics, 5:3, 269-283 http://dx.doi.org/10.1080/19331680802425479

Sultan N. (2010): Cloud computing for education: A new dawn?, International Journal of Information Management, Volume 30, Issue 2, April 2010, Pages 109–116.

Vouk M. (2008): Cloud Computing – Issues, Research and Implementations Journal of Computing and Information Technology - CIT 16, 2008, 4, 235–246 doi: 10.2498 /cit.1001391

Betonio D. (2011): 12 Excellent Cloud Computing Operating Systems http://www.tripwiremagazine.com/2011/04/12-excellent-cloud-computing-operating-systems.html

Cloud computing in education (2010): www.microsoft.com/educloud Fox, A. (2009). Cloudcomputing in education. Berkeley iNews,

https://inews.berkeley.edu/articles/Spring2009/cloud-computing (accessed on: 29 July 2009). Kowalenko K. (2012): Coming Soon: New Cloud Computing Services, 7 Юни 2012,

http://theinstitute.ieee.org/benefits/products-and-services/coming-soon-new-cloud-computing-services Larson L. (2012): Web 4.0: The Era of Online Customer Engagement, Published January 5, 2012,

http://www.business2community.com/online-marketing/web-4-0-the-era-of-online-customer-engagement-0113733

Rouse M. (2010): Platform as a Service (PaaS) http://searchcloudcomputing.techtarget.com/definition/Platform-as-a-Service-PaaS

Sourya B. (2011): How Can Cloud Computing Help In Education? http://www.cloudtweaks.com/2011/02/ how-can-cloud-computing-help-in-education/

Teylor F. (2010): Cloud Computing, 10 Web Operating Systems, http://www.admixweb.com/2010/ 07/23/cloud-computing-10-web-operating-systems/

Uskov V. (2010): Transforming Web-Based Education: From Web2.0 to Web4.0, http://www.ineer.org/Events/ICEE2010/presentations/Pres_1303_1425_USKOV.pdf