This book contains a collection of 24 state-of-the-art contributions in the area of Information Systems Engineering. It was compiled as a tribute to Professor Janis Bubenko on the occasion of his retirement from the University of Stockholm in February 2000.The contributions are arranged in three sections:- Information Society, with such subjects as B2B E-Commerce, human imperfection, stream data management and enterprise modeling- Approaches to Information Systems Engineering, discussing data warehouse development, web-enabled methods, reuse, and meta-data- Concepts for Information Systems, on more fundamental notions such as time, abstraction, co-operation, intention and informationAll the contributors are well-known and highly reputed scholars in the area of Information Systems Engineering from all over the world.