Farrington, J.2016-04-192016-04-191998ODI Natural Resource Perspectives, No. 271356-9228http://hdl.handle.net/10919/66467Metadata only recordExperience over the last decade suggests that participatory approaches to technical change are falling into two broad camps: public sector approaches and NGO approaches. Public sector approaches are generally part of a client orientation strategy and rarely aim to do more than enhance the functions of technology design and delivery. By contrast, NGO approaches generally aim for the empowerment of weaker groups.text/plainen-USIn CopyrightParticipatory processesExtension serviceNongovernmental organizations (NGOs)Community participationParticipatory researchOrganizationsFarmer researchEcosystem Farm/Enterprise ScaleOrganisational roles in farmer participatory research and extension: Lessons from the last decadeAbstract