Distribution of data. Efficiently updating a database (DB) from multiple locations at the same time. Distributed DB. Distributed data processing. Distributed information systems. Types of distributed DB. Levels of work over distributed DB The distributed architecture of the information system. Distributed systems for managing databases. The basis of distributed DB. Distribution independence. Managing local and global transactions. Data replication. Preserving consistency and replications. Basis for designing the distribution of DB. Designing the distribution of information systems. Designing the distribution of transactional information system programs by type of location and specific locations. Forming a distribution scheme of transaction programs. Designing the DB distribution by type of location and specific locations. Forming a distribution scheme of DB. Designing DB replication by type of location and specific locations. The formation of DB replication scheme.