An information architecture is a high-level, conceptual design for a system which describes the fundamental requirements and principles of a system, and details its essential elements and characteristics. I conducted a comprehensive review of published literature on telecare, including government reports and case study papers. This enabled a complete picture to be constructed of telecare system components. The components can be divided into four separate categories: human components, ICT components, telecare operational units and supportive elements. The system requirements cover functional, non-functional and informational requirements. Telecare holds great potential for all sectors of society. Its true value may only be realised when the nature of information within the telecare system is fully understood. The thorough analysis, manipulation and usage of system data are the key to the future success of telecare services.