Major effort has been necessary to achieve decentralization of the health programs in Brazil, therefore essentially implying the creation of innovative practices. A number of researchers have been facing the challenge to carry on studies evaluating the implementation of health programs. Some ongoing research has been indicating interpersonal relations as an important factor, which explains the different consequences. This paper intends to discuss the importance of interpersonal relations in the implementation of health programs starting from the contribution of social network's analyses. Investigations towards the comprehension of performance variations in health programs which incorporate such outlook will be proposed.
evaluation; health programs; social network; interpersonal relations