With my background in agriculture and industrial engineering, I am interested in the food supply chain, especially in developing countries. My current research topic is designing intervention to empower horticultural chain actors to increase their awareness of their capability to deal with their situation. Relation between farmers and wholesalers (local traders) become my focus of intervention. For this intervention, a series of workshop based on participation approach is used as a medium to facilitate farmers and wholesalers to understand their current situation, understand each other situation, and to generate ideas to deal with shared situation. Farmers and wholesalers in some farming areas at Bandung District Indonesia are taken as case studies of the intervention.