Several methodologies based on Multi-agent Systems (MAS) already exist. They help designers to describe software or to create MAS which aim at solving complex problems by simulations. Due to used formalisms, a methodology may be more or less generic. In this context, we have created a mobility oriented methodology called RAFALESP based on multi-agent systems. It helps us to describe mobiles which move on a space. This environment can be a virtual representation of a real space like a town where unpredictable events arise. We apply our methodology to solve problems which come from different research areas. We use it to find answers to geographical problems. The presented methodology begins by a conceptual representation of each mobile type and finishes by a mobility simulator. It uses several formalisms: UML and Ploom-Unity. They allows us to define mobiles, their interactions and their environment. According to their knowledge, their behaviour rules, mobiles moves on a space by fol...