Book excerpt: This document intends to provide an analysis of the outcomes of the application of the TAP Common Framework in the eight countries of the Capacity Development for Agricultural Innovation Systems (CDAIS) project. The TAP Common Framework (TAP CF) was developed at the global level as an initial activity of the CDAIS project in order to guide capacity development (CD) and strengthening of Agricultural Innovation Systems (AIS). The project then tested this framework in eight pilot countries (Guatemala, Honduras, Burkina Faso, Angola, Rwanda, Ethiopia, Lao PDR, Bangladesh). The purpose of the transversal analysis was to understand how the CDAIS approach contributed to outcomes and impacts in a diversity of contexts and to propose recommendations for upgrading the Common Framework across its theoretical and practical dimensions. The two main guiding questions were: • What made the CDAIS approach transformational (or not) in diverse contexts? • How useful, usable and used was the TAP Common Framework? The comparative analyses consisted in drawing patterns of context-mechanism-outcomes from case studies from the different countries. Insights gained from some countries were checked and complemented with the data and lessons learnt from others. Common findings were merged, and particular cases were used to expand or refine the generic theory that was built on the case-by-case approach.