Abstract: Location-based services recently happened to be one of the new cutting edge technology in Computer Supported Cooperative Work. This project focuses on its collaborative uses: how group of people benefits from knowing others' whereabouts when working together on a joint activity. For that matter, we set up a collaborative mobile environment called CatchBob! in which we will test how a location awareness tool modifies the group interactions and communications, the way they perform a joint task as well as how they rely on this spatial information to coordinate. Series of experiments will be ran on this platform so that we could figure out how location awareness impacts group collaboration.

This project targets objectives at three levels, that would be considered as the three main scientific contributions:

• Basic research objectives: to understand the role of space and location awareness on collaborative processes through field experiments.
• Methodology/Methodological objectives: this project aims at developing innovative and systematical methods to analyze mobile CSCW with regard to performance, group interaction and communication.
• Applied research objectives: to translate these results into the design of CSCW environments, namely by providing sound guidelines.