RESUMO
In this study a formal analytical technique was introduced in typical planning operation of the Quebec Ministry of Social Affairs. The mental deficiency sector of the province was chosen because important changes were imminent in both the orientation and types of services provided to children in this sector. A simulation model was constructed according to system dynamics methodology to provide an integrated description of the social impact of these changes. The immediate result of the simulation model was to focus a reevaluation by government planners on certain operational features of the system of services and the implementation schedule of the ministry's policy. In a broader context, the model demonstrated that simulation is a viable approach to planning social services. Similar social services studies have been initiated to familiarize government planners with the methodology and have been used in the preparation of precise implementation plans.
