Abstract. Semantic Web technologies such as RDF are usually incorporated in the infrastructure of desktop and web applications and can currently not be entirely deployed on mobile devices. Therefore, the unique opportunities and novel features the Semantic Web offers are not amenable in mobile application scenarios, in which context and contextawareness is essential. In this thesis, we propose a context-sensitive Semantic Web framework for mobile devices by which contextual data can be processed semantically and integrated with data sets and services from other communities. Mobile devices augmented with those capabilities can operate autonomously and independent in different environments. Key words: mobile computing, Semantic Web, context, context-awareness