A. MacWilliams, T. Reicher, G. Klinker, B. Bruegge Design Patterns for Augmented Reality Systems Proc. of the International Workshop exploring the Design and Engineering of Mixed Reality Systems - MIXER 2004, Funchal, Madeira, CEUR Workshop Proceedings (bib)
	For documentation and development of augmented reality (AR) systems, we propose the use of design patterns. Patterns are structured descriptions of successfully applied problem-solving knowledge. They describe a specific design problem, the particular design context, and a generic solution scheme. The solution scheme specifies the involved components, their responsibilities, relationships and the way they cooperate. We see design patterns as the right abstraction for the documentation of AR systems. A common language based on design patterns allows the use of common, well-known terms among developers of AR systems. Examples are terms such as scene graph-based rendering and networked trackers. With a catalogue of patterns, developers of AR systems can more easily identify existing solutions to design problems. For this, we must identify relations and dependencies among individual patterns. The goal is the systematic ordering of the individual patterns into a system of patterns. Such a pattern system shows the interdependencies among the patterns. For example, a VRML web plugin enables easy embedding of AR content into web documents, but in turn requires a web server, which is unsuited for autonomous systems. This paper is the continuation of a discussion we started at the STARS 2003 workshop. We have already identified some 30 design patterns for AR. Most of the patterns will also be relevant for mixed reality systems. In this paper, we present our existing catalog of design patterns and discuss the findings. In particular, we consider it as important to find the right name for each pattern, to bring forward discussion in the developer community.
	This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each authors copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.