The system that creates, updates and accesses production systems. They do not access, or update decision support systems. See Legacy system
a system that helps a department or enterprise to operate on a day-to-day basis
a system that has been implemented into the production environment and is being used by clients as a ‘live’ system.
A system which supports the operations of the client's business. These systems may be mission critical systems or support systems.
An information system designed and optimized for day-to-day business transactions, often structured around events, business processes or business activities.
IT system supporting the operation of an enterprise (e.g. cf. HIS, cf. POS, cf. LIS, cf. RIS/PACS)
