This book constitutes the refereed proceedings of the 32nd International Conference on Conceptual Modeling, ER 2013, held in Hong Kong, China, in November 2013. The 23 full and 17 short papers presented were carefully reviewed and selected from 148 abstracts and 126 full papers submissions. The papers are organized in topical sections onmodeling and reasoning, fundamentals of conceptual modeling, business process modeling, network modeling, data semantics, security and optimization, ontology-based modeling, searching and mining, conceptual modeling and applications, demonstration papers."

This book constitutes the refereed proceedings of the 26th International Conference on Conceptual Modeling, ER 2007, held in Auckland, New Zealand, in November 2007.

The 37 revised full papers presented together with 3 keynote lectures were carefully reviewed and selected from 167 submissions. The papers are organized in topical sections on data warehousing and data mining, design methodologies and tools, information and database integration, information modelling concepts and ontologies, integrity constraints, logical foundations of conceptual modelling, patterns and conceptual meta-modelling, requirements elicitation, reuse and reengineering, semi-structured data and XML, as well as Web information systems and XML.