Service systems in public spaces are now being developed by employing ubiquitous computers in these spaces. Such systems must provide services to end users with a wide range of motivations, including unmotivated users who do not actively use the available services. Context-awareness to support these users is thus an important requirement for this kind of ubiquitous computing (UbiComp) system.
We propose a service selection method based on registered context types for each end user in order to facilitate ubiquitous service systems in public spaces. By applying this method, we have developed a prototype of an interactive guidance board application and demonstrated its effectiveness.