The PlatformUptake.eu seeks to deliver an inventory of the state of the art and analyze the use of open service platforms in the Active and Healthy Ageing domain, covering both open platforms -such as UniversAAL, FIWARE and partly-open/proprietary platforms developed by industry, and address the interactions between these platforms. To measure the impacts of such platform and enhance their uptake, the project proposal presents a methodology for monitoring open platform development, adoption and spread across Europe, by listing key factors that determine success or hindrance in their uptake by the end-user groups, and also the evolution of their ecosystems and stakeholder networks.