is an exchange between two parties that is recorded and stored in a computer system.
Collects stores and processes data to provide useful accurate, and timely information.
helps people make decisions by directly manipulating data, analyzing data from external sources, generating statistical projections, and creating data models of various scenarios.
is a knowledge based system, system designed to analyze data and produce a recommendation, diagnosis, or decision based on a set of facts and rules.
is a type of information system that uses the data collected by a transaction processing system, and manipulates the data create reports that managers can use.