"This guide presents ScoPeO, a tool for measuring changes in living conditions as perceived by beneficiaries once a project is implemented. More specifically, the method serves to evaluate quality of life, perception of safety and participation in society and family life in two phases: before or at the start of the project (baseline survey) and at the end of the project (endline survey). Thus, this guide presents concepts related to quality of life and similar notions, the key phases in the process and provides the tools needed to conduct a study on quality of life. This guide is designed for all Handicap International professionals, and in particular the project managers, operational coordinators and technical coordinators in charge of developing, implementing, monitoring and evaluating projects. Handicap International partners may also find this guide useful"