This paper presents first results of a project aiming to provide the requirements for enabling elderly people to stay longer in their flats or houses before moving to senior citizen's residences or nursing homes. Using market available devices an Ambient Assisted Living (AAL) system is developed for recording vital sign data. A minimal invasive radio transmission system and smart home sensors are installed. Data will be recorded, transferred and stored/managed in a private cloud-portal. On top of the recorded data a collaborative business model is developed enabling fair allocation of revenues. Data driven services will be developed and deployed. With the consent of the data owner (resident/client) data may be sold to external companies based on a data fair share concept. The compliance of data security policies will be achieved either by a data usage control system or by blockchain-based smart contracts.