The context of this work is that of systems being able to produce a collective response from interaction between simple individuals. Such systems are qualified of self organized ones and can be modeled with reactive multi-agent systems. This article underlines why, from our point of view, the analysis of these systems requires an experimental approach and it details our proposition in terms of tools for experimentations. After commenting each main components of the platform, it provides some details about its current implementation in the case of two systems.