This article represents a proposal of assessment based on the personal interview taking as a model the Brief Therapy focused on solving problems . It consists of two main sections. In the first one we can introduce the interview organised into five main steps: 1. An approaching to our client in order to decide on the necessities of our action; 2. A study of the problem in which these necessities are developed; 3. The specification of the context in which the problem appears; 4. The search for the solutions our client has already tried; 5. Development of new plans to solve the problem, and finally 6. The release of an open attitude towards change. In the second section of this article and by means of different and clear examples we’ll try to illustrate the previous steps and the distinct strategies that can help us to solve the different problems.