an organised combination of people, hardware, software, communications networks, data resources, policies, and procedures that stores, retrieves, transforms, and disseminates information in an organization.
a set of hardware, software, data people and procedures that work together to:  collect process / produce store analyse processes stores disseminates information for a specific purpose.
a group of components that collects, stores, organizes, analyzes, and diseminates data for users to answer question and make decisions.