Definition $($or Partial Definition$)$

A subject$-$oriented, integrated collection of data used to support management decision$-$making processes.

A system in which like transactions are processed periodically as a group.

An environment in which a user department is responsible for developing, or purchasing and running, an IT system $($application$)$ with minimal or no support from the central information systems department.

A system that eliminates data redundancy and enforces data integrity by storing data separately from $($outside$)$ programs and that contains data for two or more IT applications.

Computer systems in different locations.