WebRTC ile gerçek zamanlı sanal sınıf uygulaması

Öz

WebRTC (Web-based real time communication) web tabanlı gerçek zamanlı ses, video ve veri iletişimine olanak sağlayan açık kaynak iletişim projesidir. Bu çalışmada WebRTC teknolojisi kullanılarak geliştirilen Sanal Ders uygulaması ile sanal sınıf ortamlarının getirdiği etkileşim eksikliği, öğrencinin çevrimdışı takip ettiği derslerde sorularına karşılık bulmada yaşadığı zorluklar, uygulama için eklenti ve benzeri program kurulumu ihtiyaçları, platform ve sistem bağımlılığı gibi olumsuzlukların giderilmesi hedeflenmiştir. Bu uygulamada; tek bir HTML5 uygulaması ile belirlenen bir zamanda internet bağlantısının olduğu herhangi bir yer ve cihazda hiçbir ek yazılım veya eklentiye gerek duyulmadan kesintisiz anlık sesli ve görüntülü iletişim kurabilecek bir sanal sınıf ortamı sağlanabilmektedir. Ayrıca eğitmen ve katılımcılar arasındaki etkileşimin arttırılması amacıyla anlık mesajlaşma, doküman paylaşım ve sunumu ile beyaz tahta uygulaması da eklenmiştir. Sanal Ders ile eğitiminde mekâna ve cihaza bağlı kalmadan özgür bir ortam sağlanabilmektedir. Böylece hem eğitimde eşitlik hem de zaman ve maliyet tasarrufu sağlanabilmektedir.

Anahtar Kelimeler

• Web tabanlı gerçek zamanlı veri aktarımı,WebRTC,Sanal sınıf,Mobil,HTML5

A real time virtual classroom implementation with WebRTC

Abstract

WebRTC is an open source communication project which provides the communication of web based real time sound, video, and data. In this study, some difficulties are analyzed and eliminated with the application of Sanal Ders developed by using WebRTC technology. These difficulties can be listed as follows: the lack of real communication in virtual classroom environments, the issues that the students studying offline face while they get no responses to their questions, the requirement for new plug-ins or the program installations, the dependency to the system and platform. This application provides the virtual classroom environment that has an instant and continuous voice and visual communication with only an HTML5 application during the specified time period and place. The device connected to the internet is sufficient and no additional software and plug-ins are required. Instant messaging, document sharing and presenting, and white board application are also added to increase the communication facilites between the instructor and participants. Use of Sanal Ders enables to create free environments from place and device in educational process. This framework improves the education by both creating equality and providing efficiency in time and cost.

Keywords

• Web base real time communication,WebRTC,Virtual classroom,Mobile,HTML5

References

1. Annagylyjov Y. Geleneksel Öğretim ile Sanal Sınıf Öğretim Süreçlerinin Öğrenci Başarısına Etkisinin Karşılaştırılması. Yüksek Lisans Tezi, Gazi Üniversitesi, Ankara, Türkiye, 2006.
2. Türel YK. Sanal Sınıf Eğitim Merkezi Yazılım Projesi. Yüksek Lisans Tezi, Fırat Üniversitesi, Elazığ, Türkiye, 2003.
3. Deshpande SG, Jenq-Neng H. “An interactive virtual classroom-multimedia distance learning system”. 3rd Workshop on Multimedia Signal Processing, Copenhagen, Denmark, 13-15 September 1999.
4. Sankar C. “Video-conferencing in a classroom II”. Engineering and Technology Management 1996 Proceedings International Conference, Vancouver, BC, Canada, 18-20 August 1996.
5. Oh JB, Kim JS, Kim HK. "An application sharing object and behavior for collaboration based system". 23rd Euro Micro Conference New Frontiers of Information Technology EUROMICRO 97, Budapest, Hungary, 1-4 September 1997.
6. Suksakulchai S, Chunkul C. “Real-Time classroom system with two way communication for distance learning”. EDUCOM International Conference, Perth, Western Australia, 22-24 November 2006.
7. Buasri N, Janpan T, Yamborisut U, Wongsawang D. “Web-based interactive virtual classroom using HTML5-Based technology”. 2014 Third ICT International Student Project Conference (ICT-ISPC), Nakhon Pathom, Thailand, 26-27 March 2014.
8. Ouya S, Seyed C, Mbacke AB, Mendy G, Niang I. "WebRTC platform proposition as a support to the educational system of universities in a limited Internet connection context". 5th World Congress on Information and Communication Technologies (WICT), Marrakech, Morocco, 14-16 December 2015.

9. Ouya S, Sylla K, Faye PMD, Sow MY, Lishou C. "Impact of integrating WebRTC in universities'e-learning platforms". 5th World Congress on Information and Communication Technologies (WICT), Marrakech, Morocco, 14-16 December 2015.
10. Kumar PV, Kumar NP, Sunil VR, Anvekar PS, Sanjeetha R."Implementation of Virtual Class Using WebRTC". International Journal of Innovative Research in Science & Engineering, 3(3), 66-69, 2014.
11. Chen Y, Xinghong K, Junjun L, Yanxiang W. "A blending e-learning model for digital electronic technology teaching". International Conference on e-business and e-government (ICEE), Guangzhou, China, 7-9 May 2010.
12. Anaraki LN, Heidari A. "Knowledge management process in digital age: Proposing a model for implementing e-learning through digital libraries". 5th International Conference Application of Information and Communication Technologies (AICT), Baku, Azerbaijan, 12-14 October 2011.
13. Luo YW. "The effect of using JavaScript and HTML to implement an e-learning web sites as a remedial teaching aid on English underachievers at universities of science and technology". 40th International Conference on Computers and Industrial Engineering (CIE), Awaji, Japan, 25-28 July 2010.
14. Wang G."Work in progress-preview, exercise, teaching and learning in digital electronics education". 38th Annual Frontiers in Education Conference, Saratoga Springs, NY, USA, 22-25 October 2008.
15. Bandung, Y, Darryl. "Designing evaluation system for virtual class service in limited network capacity using SERVQUAL methodology". Cloud Computing and Social Networking (ICCCSN) International Conference, Bandung, West Java, Indonesia, 26-27 April 2012.
16. Cahyadi E, Santoso HA, Bandung Y, Langi AZR. "Augmented reality Virtual Class Box for digital learning services". Cloud Computing and Social Networking (ICCCSN) International Conference, Bandung, West Java, Indonesia, 26-27 April 2012.
17. Blichar J, Podhradsky P. "Liferay as a collaboration and communication platform for m-learning subsystem". ELMAR, 2012 Proceedings, Zadar, Croatia 12-14 September 2012.
18. WebRTC. “Developer Tools and Resources”. http://www.webrtc.org/start (11.10.2015).
19. Karel A.Ş. “WebRTC Nedir? Uç birim Yazılımlarının sonu mu?”. http://www.karel.com.tr/blog/webrtc-nedir-uc-birim-yazilimlarinin-sonu-mu (01.09.2015).
20. Loreto S, Romano S. Real-Time Communication with WebRTC, USA, O'Reilly Media, 2014.
21. The World Wide Web Consortium (W3C). “Real-time Communication Between Browsers”. http://www.w3.org/TR/webrtc/ (01.11.2015).
22. Toğay C. “WebRTC technology for mobile devices”. 22nd Signal Processing and Communications Applications Conference (SIU), Trabzon, Turkey, 23-25 April 2014.
23. Sergiienko A. Developing a WebRTC Application. WebRTC Blueprints. 9-41, Birmingham, Packt Publishing, UK, 2014.
24. Zeidan A, Lehmann, A, Trick U. “WebRTC enabled multimedia conferencing and collaboration solution”. WTC 2014 World Telecommunications Congress, Berlin, Germany, 1-3 June 2014.
25. Taş E. “NodeJS Nedir?”. http://dergi.bmo.org.tr/sayi-3/nodejs-nedir (11.10.2015).