Résumé
WIMS is not a training application like many others. You can enter whatever room in the world, provided it is connected to Internet, and say to your students « Please, worksheet number 4 » and it works.
That is the reality. You can verify it in each of the neighboring boots, for instance with the server hosted by CRI74 : http://wims.ofset.org/wims
When an educative application has been developed with WIMS it becomes more available than any other educative application: it is as robust and redundant than an internet service mirrored in many places around the world.