Protocols. All of the five national program partners in DEGITA used the same standard evaluation protocols that included baseline surveys and comparative trials with GIFT and locally farmed tilapia strains, on-station and on-farm. These protocols were innovative in aquaculture research in their combination of ex-ante and ex-post assessments at both the household and country levels. Their unique feature was an ex-ant assessments of GIFT at the start of technology adoption, rather than its assessment ex-post, as is typical of aquaculture technology impact assessment and evaluations of adoption versus no adoption.