The Executive Summary provides a concise overview of the three-year early childhood demonstration site evaluation that was funded by the Margaret and Wallace McCain Family Foundation (MWMFF). The intent of this evaluation effort was to provide a specific means from which to examine initiative activities, and to document lessons learned as a result of the developmental and implementation processes associated with the Early Childhood Development Centres (ECDCs). In addition, this research explored areas of impact or change related to the provision of integrated early childhood services resulting from the initiative. The primary goal of this evaluation was to report on the key perspectives, processes and practices related to the Early Childhood Development Centre demonstration initiative. The project research team was composed of members of the Health and Education Research Group from the Faculty of Education, University of New Brunswick. For this initiative, a case study methodology was employed to facilitate a systematic investigation of situations and experiences. The initial four sites in this study were selected by the Province of New Brunswick through a tendering process, and represented the linguistic, economic and geographical characteristics unique to the province of New Brunswick. Additional ECDCs were selected and funded by the MWMFF using the same program criteria. (author abstract)