We have chosen for this tutorial a very simple problem: find a way in the M├ętropolitain from one station to another.

This tutorial will be used to introduce, one by one, all the features of the middleware in an intuitive way (we hope).

Once you have completed this tutorial, you should have the same skills as us and you will be able to write very complex distributed applications.

The application is called '''trom''' from the French slang called verlan [http://en.wikipedia.org/wiki/Verlan] which consists in the inversion of syllables in a word and which is very common in youth language:

metropolitan -> metro -> trome => trom.