This document summarizes a workshop on methodology and indicators for assessing research and innovation held by the Data4Impact project. The project uses big data techniques to track the impacts of publicly-funded health research. In the morning, the project presented its analytical model and indicators for tracking outputs, academic impacts, economic impacts, and societal/health impacts. Discussion groups provided feedback on the indicators. In the afternoon, a panel of policymakers and funders discussed the relevance of the indicators and opportunities to improve the methodology. The workshop concluded by inviting participants to a future workshop on applying big data in scientometrics.