Improving Computer Support for Cooperative Applications over Internet

The development of environments for telecooperation over Internet is an increasing necessity for speeding up learning, development and cooperation. In this paper, we introduce an architecture model and a protocol, designed to allow multiple on-line communication among several collaborating tools. An abstract event model, which supports remote operation, is also presented. In the practical field we discuss the features of TeleMeeting, a system developed in Java, that supports the previous concepts and incorporates several tools to improve the ”virtual meetings” over Internet.