... and Regier, 198 0; Odum, 198 3; Rapport et al., 198 5; Swindale, 199 2; Izac and Swift, 199 4; Winograd, 199 4; van Bruschem, 199 7; Aldy et al., 199 8; Smit et al., 199 8). Gallopin ( 199 4a) described ... goals, and objectives of the primary managers of the system. Recent developments in par-ticipatory (Chambers, 198 9, 199 4) and action research (Greenwood and Levin, 199 8; Stringer, 199 9) methods ... frustration and confusion (Waltner-Toews, 199 6).The use of indicators to assess sustainability is a widely accepted approach (Swindale, 199 2; Izac and Swift, 199 4; Winograd, 199 4; van Bruschem, 199 7;...