Factors of reuse of units of learning material

A hypothetical model of the factors that influence reuse of digitally stored learning material is proposed. The causal relations of the model are examined, and for some evidence can be found by reasoning and from the literature. For other relations, however, empirical research may be needed

CHATNET - a Distributed Multichannel Conferencing Protocol

The aim of this paper is to give insight into the problems of the IRC protocol, and how they are solved by the proposed protocol, called Chatnet. It also explains the structure of Chatnet, how it is divided into functional parts and how these parts interact. Special attention is given to the Multicast layer, and what unsolved problems still exist. Also the error-correcting properties of the protocol are explained. Finally some concluding remarks are given