An architecture supporting the development of collaborative applications for mobile users

This article present a software architecture and services, which comprise a middleware infrastructure for the development and operation of collaborative applications for mobile users. The design of the architecture, named Mobile Collaboration Architecture - MoCA, was driven by the following goals: support scalability in terms of the number of users and services, flexibility and extensibility with respect to the used communication protocols and the application requirements, and facilitate the monitoring, processing and use of context information regarding single users and the collaborative group within the applications.