The document summarizes the development of ubiquitous healthcare (U-Healthcare) and a proposed elderly-friendly healthcare smart home system in Korea. It discusses the origins of concepts like house calls, telemedicine, and how U-Healthcare expanded medical services anywhere and anytime. It then describes a proposed smart home model that provides integrated health management for elderly residents through online and offline services linked across living spaces, community spaces, and medical facilities. The model aims to develop a low-cost system centered around residents' needs rather than diseases alone. Ideas are generated using design thinking methods and an example clinical decision support system is presented using various health sensors and feedback.