nurses housekeepers (which come to the elders’ home) or service providers, but also by informal carers. The informal network is composed of family members, friends, neighbors, relatives or any familiar proximity service providers. In particular, in 2010 a study2 revealed that 80% of the care provided to an elderly person comes from his/her close family. Most of the current studies are either centered around a hospital, a retirement home or a home care organization and focused on professionals. A collaborative solution is needed so that all informalcarers can work consistently with the professional actors, benefiting from their methodology and structure.European project Bridging Research in Ageing and ICT Development (BRAID) under the FP7-Framework ICT-2011-5.1 has defined four main lines of action making use of the concept of network, which MEDiATE, our project, builds upon- Establish collaborative environments- Establish healthcare ecosystems- Build collaboration platforms and systems- Build participatory communitiesMEDiATE is a Collaborative and interMEdiating solution- including formal and informal carers-for Managing Daily Activities for The Elderly at home”.The objective of the project is to design, build and experiment a multi-stakeholder communication and organizational solution providing a rich and open service environment supporting the elderly‘s caregiving and more broadly all functional needs taking place with the social life of his/her environment and that has to be facilitated and coordinated. Acknowledging that there are already, on the one handexisting platforms and solutions (such as Andago or Linksmart platform, see table below) to help the elderly and organize the work of the formal network partners which are both present in MEDiATE as ordinary components of the project’s ecosystem) and on the other hand platforms for interactions between elders and informal helpers (see UniversAAL or WeCare platform), there is a need toreinforce the interactions between and among informal and formal carers without a centralized person that would have to know everything. MEDiATE focuses on the role of and support given to the informal network, as a whole as well as through the capacities of each ones of its members.The baseline activity around which MEDiATE is designed and deployed is a multi-functional and multirole support to the information circulation and coordination needed between the elderly and their informal network, as well as between the informal and the formal network, so as to 1) ensure an optimal integration of such informal partners within the formal care-giving ecosystem of the elderly and2) facilitate the emergence of new services stemming from the informal network complementary to the already existing ones. The fundamental originality of MEDiATE is to build upon the multi-talent openness, initiatives and active implication of all informal stakeholders, in the design, testing and dissemination of both the formal and more informal services, aiming at enriching the overall upportive capability to the elderly, in particular reinforcing the linkage between the social and medical strands of the care delivered, providing only the required information (and no more than that) to the proper stakeholders.MEDiATE is also a solution which is independent from any specific technology, such as the devices and applications supported within the project. On this particular issue, MEDiATE, as a matter of fact, aims at achieving a strong interoperability level thanks to a carefully-designed blueprint of applied web-services and modus operandi, also leaving room for best practice exchange and performancebenchmark further on.