Nowadays, due to globalization, increase of competitiveness and organizational structure, people are required to move around the globe in order to achieve their goals. The need to commute is based on the necessity to meet with collaborators, clients, prospect clients or any other person that is on a different location. Since this need for travelling consumes a large amount of money and time resources, it is necessary to find an alternative that allows people to meet and collaborate anywhere. Consequently, this internship attempts to overcome this collaboration need with two prototypes. The first one is a Web Application that is interoperable with other types of devices in order to maximize the opportunity to collaborate. Although it is not possible to implement all functionalities in every type of device, joining a video conference from a cell phone only with audio is still more valuable than not joining at all. The only way of making all of this possible is using a mature architecture such as the IP Multimedia Subsystem. The second one is an Android Application capable of communicating with XMPP Networks.

Dissertação de Mestrado em Engenharia Informática apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra