In August 2009, the Rockefeller Foundation commissioned an independent external evaluation of the Disease Surveillance Networks (DSN) Initiative in Asia, Africa, and globally. This report covers the results of the global component of the summative and prospective1 evaluation, which had the following objectives:
 Assessment of performance of the DSN Initiative, focused on its relevance, effectiveness/impact, and efficiency within the context of the Foundation's initiative support.
 Assessment of the DSN Initiative's underlying hypothesis: robust trans-boundary, multi-sectoral/cross-disciplinary collaborative networks lead to improved disease surveillance and response.
 Assessment of the quality of Foundation management (value for money) for the DSN Initiative. Contribute to the field of philanthropy by:
a. Demonstrating the use of evaluations in grantmaking, learning and knowledge management; and
b. Informing the field of development evaluation about methods and models to measure complex networks.