With the budgetary recession which characterizes all western countries, evaluation process knew an unprecedented craze and entered all professional fields, including the social one. The problem that arises is how to evaluate the performance in a field such as sociocultural community development, rooted in democratic values such as citizenship, participation, empowerment. To answer this question, the authors opted for a methodologal and epistemological approach based on two principles: the need to make place for the plurality of perspectives of the actors involved in a participatory evaluation process and research-based intervention on the co-construction of a data collection tool. Within this article, they share some of their theoretical reflections, assumptions and field observations aroused in the course of research.