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Vol: 60(74) No: 2 / June 2015        

New Methods for the Design and Implementation of a Real-Time Collaborative Environment
Bogdan Ionescu
Mgestyk Technologies, Inc., 80 Aberdeen Street, Suite 220, K1S 5R5, Ottawa, Ontario, Canada, phone: 613) 591-1210, e-mail: bogdan@mgestyk.com, web: http://www.mgestyk.com
Cristian Gadea
NCCT Laboratory, University of Ottawa, School of Electrical Engineering and Computer Science, 161 Louis Pasteur, Room B-306, K1N 6N5, Ottawa, Canada, phone: (613) 562-5800 , e-mail: cgadea,@ncct.uottawa
Bogdan Solomon
NCCT Laboratory, University of Ottawa, School of Electrical Engineering and Computer Science, 161 Louis Pasteur, Room B-306, K1N 6N5, Ottawa, Canada, e-mail: bsolomon@ncct.uottawa
Mircea Trifan
NCCT Laboratory, University of Ottawa, School of Electrical Engineering and Computer Science, 161 Louis Pasteur, Room B-306, K1N 6N5, Ottawa, Canada, e-mail: mircea@ncct.uottawa.ca
Vasile Stoicu-Tivadar
Politehnica University of Timisoara, Piata Victoriei nr. 2, Timisoara 300006, Romania, phone: +40 256 403 000, e-mail: vasile.stoicu-tivadar@aut.upt.ro, web: http://www.aut.upt.ro/~tivadar/


Keywords: collaborative environments, real-time web collaboration, groupware, document co-editing, synchronized workspace

Abstract
Collaborating while working, playing, studying, or exercising embraces many forms, ranging from simple emails to real-time workspaces on the web. Among the most difficult aspects in designing and implementing a web-based collaborative environment is the inclusion of real-time co-editing. This is due to the fact that a co-editing tool has to work well not only with text, but also with rich-text elements. In addition, the modern web places significant emphasis on audio, video, real-time data (such as sensor data) and interactive drawing features, all of which are also expected to function within the collaborative context. This paper presents an architecture that allows the real-time synchronization of text and multimedia content among a group of users. Multiple participants within a collaborative session are able to create and edit a variety of content at the same time. Collaborative rich-text editing is made possible by a unique HTML-based operational transformations approach that can be extended through “Smart Objects”. Such objects enable the synchronization of other embedded content and any required interactive functions of the content. An example implementation of the proposed architecture shows how multiple users can collaborate over a rich-text document containing a synchronized video player while also making use of advanced chat functionality.

References
[1] T. Mei, Y. Rui, S. Li, and Q. Tia, “Multimedia Search Reranking: A Literature Survey”, ACM Computing Surveys, 2012.
[2] (2015) Google Docs - Online Documents, Spreadsheets, Presentations. Google Inc. [Accessed: November 2015]. [Online]. Available: http://docs.google.com/.
[3] K. István, A. Guth, and R. Klamma. “Shared editing on the web: A classification of developer support libraries,” in Collaborative Computing: Networking, Applications and Worksharing (Collaboratecom), 2013 9th Int. Conf. on, pp. 468-477, IEEE, 2013.
[4] W. Robbins and S. Dustdar, \"Collaborative Computing,\" in Encyclopedia of Multimedia. USA: pp. 67-74, Springer, 2008.
[5] D. Mittleman, et al. \"Toward Taxonomy of Groupware Technologies,\" in Groupware: Design, Implementation, and Use. vol. 5411, R. Briggs , et al. Eds., ed: Springer Berlin / Heidelberg, pp. 305-317, 2008.
[6] B. Tomlinson, J. Ross, P. André, E.P.S. Baumer, D.J. Patterson, J. Corneli, M. Mahaux, S. Nobarany, M. Lazzari, P. Penzenstadler, A.W. Torrance, D.J. Callele, G.M. Olson, M.S. Silberman, M. Ständer, F.R. Palamedi, A. Salah, E. Morrill, X. Franch, F. Mueller, J. Kaye, R.W. Black, M.L. Cohn, P.C. Shih, J. Brewer, N. Goyal, P. Näkki, J. Huang, N. Baghaei, and C. Saper: “Massively Distributed Authorship of Academic Papers.”, in Conference on Human Factors in Computing Systems. ACM, 2012.
[7] (2014) Apache Wave (Incubating). Apache Software Foundation. [Accessed: November 2015]. [Online]. Available: http://incubator.apache.org/wave.
[8] (2015) Etherpad. The Etherpad Foundation. [Accessed: November 2015]. [Online]. Available: http://etherpad.org/.
[9] B. Solomon, D. Ionescu, C. Gadea, and M. Litoiu, Migrating Legacy Applications: Challenges in Service Oriented Architecture and Cloud Computing Environments, ch. Geographically Distributed Cloud-Based Collaborative Application. IGI Global, 2013.
[10] C. Gadea, B. Solomon, B. Ionescu, and D. Ionescu, “A Collaborative Cloud-Based Multimedia Sharing Platform for Social Networking Environments,” in ICCCN 2011: Proc. of 20th IEEE Int. Conf. on Computer Communication Networks, pp. 1-6, IEEE, Aug. 2011.
[11] M. Heinrich, F. Lehmann, T. Springer, and M. Gaedke, “Exploiting single-user web applications for shared editing: a generic transformation approach.” in Proceedings of the 21st International Conference on World Wide Web, ACM, 2012.
[12] R.-E. Precup, C.-A. Dragos, S. Preitl, M.-B. Radac, and E. M. Petriu, “Novel tensor product models for automatic transmission system control,” IEEE Syst. J., vol. 6, no. 3, pp. 488–498, Sep. 2012.