AR is a new technology that combines real and virtual environments. In general glasses with attached displays are used to produce visual augmentatio ns of the user's environment. These so-called head mounted displays are able to project virtual objects that are registered with the real world of the user. The DWARF project is conducted at the Chair for Applied Software Engineering of the Technische Universitaet Muenchen and tries to use methods from softwa re engineering to reuse components for faster prototypical implementation of new components. DWARF consists of a set of software services that act on mobile distributed har dware and can communicate via wireless or wired networks. This communication all ows to carry personalized mobile devices with embedded services, while intellige nt environments provide location based services. The services discover each othe r and dynamically cooperate to provide desired functionality, which is required for AR applications. A critical issue of AR is the large quantity of data, which must be managed in a distributed system. This data must be reliably delivered to services that pro vide user access on that data. The handled data must be in a consistent state al lover the system. Database systems can be used for parts of the management of data to guarantee pe rsistence and efficient handling. This thesis deals with data management for distributed AR systems. The main co ntribution of this thesis is a novel approach of dynamic services, that give the user transparent access to all necessary data. The developed design has prototy pically been implemented and tested within the ARCHIE application. ARCHIE stat es a project to support architectural modeling by AR. By further development a set of general usable services can be realized that all ows to use AR in new areas.
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