Dot is an application aim for high school students. This is a tool for the organisation "le Pass'age" in
Nantes who visit student to speak about drugs, addiction, and related comportements. The organization's stakeholders launch the application and the students connect their smartphone to it, they are represented by a dot on the screen. When the experience start, they answer questions with their phone. After every question, the dot moved over in three categories : yes, no, maybe. "Le Pass'age" can use every visualizations of the answer as a screen support to debate about their point of view.

Dot is a numeric tool which generate and create a open discution between the organization and the students. The use of new technologie help to catch the attention of the young students. Plus, "le Pass'age" can observed the result in back office and to make their interventions progressed.