The Mobility Workbench | a Tool for the -calculus |

In this paper we describe the rst prototype version of the Mobility Work-bench (MWB), an automated tool for manipulating and analyzing mobile concurrent systems (those with evolving connectivity structures) described in the-calculus. The main feature of this version of the MWB is checking open bisimulation equivalences. We illustrate the MWB with an example automated analysis of a handover protocol for a mobile telephone system. Dedicated to Ellen on the occasion of her birth.