Data has become a very valuable asset for the government, industry and individuals, and management of data collection is still a critical technical challenge .. The challenge of managing terabytes and exabytes of data and extend data management to include other modalities of data while maintaining the fundamental principles of database management (data independence, data integrity, consistency, etc.) are important issues for every organization today. Published as five volumes with over 4000 pages, articles, Database Systems provide easy access to important concepts relevant information on all aspects of very large databases, data management, and database systems, including the areas of current interest and historical significance of research results .. including areas of interest laws, and the historical significance of research results?