In the last decade, information modeling and knowledge base has become a hot topic not only in academic communities related to information systems and computer science, but also in business areas where information technology is applied. The main topic of this publication targets a variety of themes in the domain modeling of information, conceptual analysis, design and specification of information systems, ontology, software engineering, knowledge management and processes, data and knowledge base. The papers selected cover many areas of information modeling, namely the theory of concepts, database semantics, knowledge representation, software engineering, WWW information management, context-based information retrieval, ontological technology, image databases, temporal and spatial databases, document data management, process management, and many others. IOS Press is an international scientific, technical and medical publisher of high-quality books for academics, scientists, and professionals in all fields.