This study proposes a methodology for Development of Ubiquitous Computing Services Design System under ubiquitous environment focusing on human basic activities and information related to home life. The main feature starts with the analysis of human life and ends with service development. The first step is to draw
user’s Basic Activities (BA) through analyzing user’s everyday home life. Next, designers find the goals of users life and each goal has the set of Basic Activities. UC service will be developed based on these BA sets. This conceptual model defines the context comprised of ‘object’ and ‘information’, which is necessary for each activity. Through the analysis of ‘object’ and ‘information’, ideas of ubiquitous computing product can be found. Analyzing the connection of objects, information and human activity can be the first step of the new service design methodology in the ubiquitous computing context, and the methodology of UCS in this paper is valuable in this point of view.