The RIU programme began in July 2006 and was designed as a five year programme: the inception period ran until June 2007 and it was envisaged that the implementation phase would run until 2011. The aim of the programme was to accumulate and evaluate evidence to shape and share lessons on how best to enable innovation in the agricultural sector so as to achieve social and economic gains in diverse developing country settings. RIU was primarily a research programme. In undertaking the research, however, RIU also aimed to put existing research products into use at scale. The Impact Evaluation of RIU aimed to provide an independent assessment of RIU contribution to poverty reduction with documentation of lesson learnt in the various countries. It entailed sampling the experiments (RIU funded projects) in Kenya and interviewing their stakeholders and beneficiaries using semi-structured interviews and visiting their interventions in Siaya district.