Innovation Systems constitute an analysis framework, which allows comprehending the socio-economic structure of a territory. It consists of analyzing the existence of actors such as government institutions, clusters, universities, industries? their main competences, and the interactions into Innovation Networks among them. Thus, authorities (regional, national, local?) are endowed of a tool that allows the creation and development of competitive and efficient Innovation Systems.In this context, and due to the importance of interactions inside Innovation Systems, the present research intends to contribute a methodology which helps us to analyze and measure these interactions produced within Innovation Networks.The methodology developed will be tested in a sector which is present in several European Territories. This way, not only the measures defined but also the differences among the Networks analyzed will be observed and tested.