An experimentation which combined training and "accompaniment" took place in 2008 in Haut-Languedoc (Hérault), to further the set up of pluriactivity projects. These projects were analyzed as complex systems of activities. We can see that the original way of thinking the activity makes the projects fragile and risky, and as a result very difficult to support. Thanks to its capacity of adaptation and its very flexible frame, the experimentation made it possible to change the way of consider them. Integrate the different dimensions of pluriactivity lead to rethink a new pluriactivity support system.
