BibSonomy publications for /user/bluedolphin/surveyMon Jan 29 11:13:06 CET 20071.3A survey on ontology toolsDeliverable2002tech_report ontology survey tools Mon Jan 29 11:12:13 CET 20071.4A survey on methodologies for developing, mainaining, integrating, evaluating and reengineering ontologies Deliverable2002survey ontology methodology Tue Oct 10 15:28:38 CEST 2006Web Semantics: Science, Services and Agents on the World Wide WebJanuary114--28Semantic annotation for knowledge management: Requirements and a survey of the state of the art42006annotation article ontology survey semantics knowledge_management tools While much of a company's knowledge can be found in text repositories, current content management systems have limited capabilities for structuring and interpreting documents. In the emerging Semantic Web, search, interpretation and aggregation can be addressed by ontology-based semantic mark-up. In this paper, we examine semantic annotation, identify a number of requirements, and review the current generation of semantic annotation systems. This analysis shows that, while there is still some way to go before semantic annotation tools will be able to address fully all the knowledge management needs, research in the area is active and making good progress.