Introduction to the evaluation’s process using honos. The results of a researchMental Health Services have to cope with the request of Routine Outcome Assessment, so they have to evaluate their job. After the presentation of the project, the instrument (Health of the Nation Outcome Scales-HoNOS) used for the research is described. Subsequently the whole research is exposed: steps, aim, sample, reliability of the instrument, study on treatment, psychopathology improvement, measured with HoNOS. Finally, we propose a reflection on the implications of the project and what has made it possible. Key Words: Evaluation in Routine Clinical Practice, Outcome, Mental Health Services, HoNOS, Integrated Treatment.