The professional insight underlying this work is to provide a link between research and theory and practice documented as case studies from projects in Brazil. The Castanhao Water Resources Complex represents a successful outcome of an essentially participatory experiment with a "bottom-up approach" where the local communities and all stakeholders played a key role.In this text there is an emphasis on the "new approach," strongly linking hydraulic engineering (hard component) and social well being (soft component) as a "process." A special focus is on the relocation and resettlement...