The book is the newest in the series of ''Information Modelling and Knowledge Bases''. The book collects the papers presented in the 11th European Japanese Conference on Information Modelling and Knowledge Bases held in Maribor, Slovenia. This annually organized conference brings together the leading researchers from Europe and Japan to introduce the latest results of their research. Topics covered are: Theoretical and Philosophical Basis of Concept Modelling and Conceptual Modelling; Conceptual Modelling and Information Requirements Specification; Models in Intelligent Activity; Collections of Data, Knowledge and Descriptions of Concepts; Human-Computer Interaction and Modelling; Software Engineering and Modelling; Applications of Information Modelling and Knowledge Bases.