1 An Approach for Developing

1. Introduction Augmented reality is an interaction technology that provides users with spatially related information in the real world in real time [1]. An augmented reality system tracks the position and orientation of objects, for example the user's head, and superimposes virtual objects into the user's field of view. Augmented systems support multiple human-computer interaction techniques for input (multi-modality) and output (multi-media). Ubiquitous computing aims to provide a " calm " interface to computers, making them invisible, yet omnipresent [2]. Users should be able to use computing technology in their environment without having to think about it as such. For this, devices must provide their services autonomously and shield the user from configuration tasks. Additionally, other users can bring along devices which themselves provide new services. Ubiquitous computing is a broader field than augmented reality, and includes many different ways of augmenting the users' environment, with augmented reality as one possible technology. As the computing and interaction hardware required for augmented reality becomes smaller and more ubiquitously available, augmented reality and ubiquitous computing can converge, creating systems that are ubiquitously available and allow interaction in the style of augmented reality.