The PersonAAL project aims at extending the time older people can autonomously live in their home environment. This will be achieved by providing intelligent and intuitive web applications enabling users to receive personalized and context-dependent assistance directly in their homes, so as to increase their awareness and the control of lifestyle, improve quality of life and decrease healthcare delivery cost. The project will provide developers with an authoring environment that will incorporate accessibility concerns and design-for-all principles during the Web application development, and a run-time support able to adapt and customize previously authored care applications to elderly users, their changing abilities, their environment and device characteristics. The selection of the most suitable user interfaces to be provided to users will be performed by an intelligent platform on the basis of the current context of use (which will cover various relevant aspects like the consideration of characteristics of the user, of the surrounding physical/social environment, and of the current available device(s)), and with the support of adaptation rules provided also by formal or informal care givers. The multi-channel adapted applications will then be able to remotely assist older adults through various devices (PC, TV, smartphone, etc.) and interaction modalities (graphics, voice, gesture) through the provision of user interfaces able to dynamically adapt to the current situation in a timely and contextually fine-tuned way. We also want to enhance the relationship of older adults with relatives/(informal and formal) caregivers, by providing the latter ones with customisable environments able to support the elderly more effectively. To this regard, the project will develop an environment through which it will be possible for the caregivers (but even for end users more familiar with technologies) to easily and intuitively configure and manage a number of adaptation rules aimed at offering personalized and intuitive services to the elderly in various contexts. We plan to apply and integrate these concepts in a set of care applications in order to validate the results in a realistic settings and show their generality.