This book constitutes the refereed proceedings of the 20th International Conference on Conceptual Modeling, ER 2001, held in Tokohama, Japan, in November 2001.
The 45 revised full papers presented together with three keynote presentations were carefully reviewed and selected from a total of 197 submissions. The papers are organized in topical sections on spatial databases, spatio-temporal databases, XML, information modeling, database design, data integration, data warehouse, UML, conceptual models, systems design, method reengineering and video databases, workflows, web information...

TC8 is one of IFIP's most active committees. This book focusses on information systems support for organisations looking particularly at business process reengineering, co-operation between organisations and support for improved work flow in organisations. These are topical subjects and will appeal to both business and research communities.