This book introduces heterogeneous information exchange as related to organizational hubs and provides new directions and challenges for various other topics, including knowledge management and web information management. It presents ongoing developments in formal and experimental work and extended examples help the reader to understand underlying concepts and the difficulties with applications. The book is divided into three major parts: Part I - Heterogeneous Database Integration: Concepts and Strategies, which deals with developing architectures and techniques for integrating schemas and data; Part II - Data Warehousing: Models and Architectures, which develops new and different data warehouse architectures such as multidimensional databases with related management and querying tools; and Part III - Sharing Information and Knowledge, which concerns knowledge management, use of standards, information mining systems, and web information management. The well chosen topics provide scientists, information specialists, engineers, managers, and librarians with new insights in the field of heterogeneous knowledge management systems, including critical aspects of databased decision making, backed by information sharing processes. In addition, managers will find incentives and materials to support new information tools in their organizations.