In psychiatric clinical practice it is recommended to assess children and adolescents in the context of their individual, familial, academic and interpersonal functioning. Therefore, the formulation of clinical diagnoses using an integrative method with multiple analytical perspectives organized by frames of reference, will contribute to a better understanding of the patient’s health status and the common multifactorial causation of mental health problems. A diagnostic formulation model can constitute an essential component of the integrative psychiatric assessment, guiding the psychiatrist and resident in training in the initial clinical analysis of their case, leading them from the gathering of clinical information and global diagnostic approach to the construction of an intervention plan. The present article demonstrates the clinical analysis of a case of an adolescent who presents to a mental health center, whose care team is composed of first year residents in a child and adolescent psychiatry program and their supervisors. In the analysis of the case, the team uses an integrative and multidimensional model of diagnostic formulation based on a clinical analysis of chronologically ordered risk factors (7P model), which is complemented from the perspective of psychopathological models and an individual functioning grid. Knowing how to conduct a diagnostic formulation can stimulate psychiatry residents to think reflexively in their clinical practice and can serve as a useful tool to guide clinical supervisors in their teaching.