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Journal of Information Science and Engineering, Vol.19 No.2, pp.249-265 (March 2003)


The Design of a Synchronous Virtual Writing Clinic*

Chin-Hwa Kuo, David Wible**, Meng-Chang Chen+, Li-Chun Sung and Chia-Lin Chio
Computers and Networking (CAN) Laboratory
Department of Computer Science and Informaiton Engineering
Tamkang University
Tamshui, 251 Taiwan
**Research in English Acquisition and Pedagogy (REAP) Group
Department of English
Tamkang University
Tamshui, 251 Taiwan
+Advanced Internet Protocols and Services Group
Institute of Information Science
Academia Sinica
Nankang, Taipei, 115 Taiwan

The design of an online synchronous writing clinic is described. Two novel mechanisms have been designed to provide the two fundamental capabilities for the clinic: (1) synchronous text co-editing, and (2) Internet voice delivery. Therefore, the participants are able to synchronously edit a common text file on-line with voice communication support by using the synchronous text co-editing tool. Furthermore, the designed policy-based forward error correction voice transmission mechanism delivers good voice conversation quality when handling delay, jitter, and packet loss on the Internet. The developed system not only has great value in supporting applications such as CSCW, Internet Telephony, or Multimedia Instruction on Demand (MID), but also has been applied in the area of Distance Language Learning by exploiting the integration of computer and networking capabilities with linguistic and pedagogical principles.

Keywords: computer supported cooperative work (CSCW), voice transmission, co-editing, distance learning, computer assisted language learning (CALL)

Full Text () Retrieve PDF document (200303_04.pdf)

Received April 9, 2000; revised August 29 & December 20, 2000 & January 8, 2001; accepted May 15, 2002.
Communicated by Chuen-Tsai Sun.
*The present work is partially supported by the National Science Council Taiwan ROC under contract No. NSC 88-2213-E-032-002.