In this paper we present a flexible assessment framework for eLearning based on semantic web technologies. The assessment techniques are formalized as reasoning rules. These rules are able to reason over resources annotated with semantic web metadata formats and according to the standards LOM and IMS QTI. The framework is tested using TRIPLE, a rule-based language for the semantic web. 1 Motivation With the rapid development of distance learning, assessment functionality becomes one of the key factors of online learning. Based on assessment, the learning with electronic materials can be enriched by a quality and timely feedback, by just-in-time problem solving aid, by guided and personalized learning, thus turning the learning process into a highly interactive learning experience with Web-based courses and learning materials. In this paper we present a flexible framework for assessment technology which is based on recent eLearning standards. The realization of the framework uses seman...