The U-Care project will develop a services layer for integrated homecare systems, which provides tailorable, evolvable and non-intrusive home care services. This U-Care platform will provide technology-independence, in the sense that it will shield application developers from underlying software and network technologies. The U-Care platform differs from current platforms in that it will provide basic context-aware functions that can be used as service building blocks, by utilizing information derived from sensors for biosigns (activity level, heart rate, blood pressure, oximetry, weight, etc.) and sensors for physical context (location, temperature, humidity, etc.). We will focus on wellness and healthcare applications and services to assist people of 50 years and older in an "integrated living" environment.