This paper has a dual aim: to situate functionalities among the complex of factors that help shape online interactions and to explore the heterogeneity of audio conferencing and its implications. Following a critical discursive synthesis of the treatment of variables in the literature, attention focuses on the distinctive and diverse…

In order to match the customary strengths of the still dominant face-to-face instructional mode, a high-performance online learning system must employ synchronous as well as asynchronous communications; buttress graphics, animation, and text with live audio and video; and provide many of the features and processes associated with course management…