(1) In DFU, a way to change from one display format to another after the user signals that the first display format was completed.
(2) In RPG, an operation code that reads input records identified by specified relative record numbers or keys.
(3) A group of logically linked records that are transferred over a communications line.
(4) A group of request units delimited by begin-chain and end-chain. Responses are always single-unit chains.
(5) The name of a channel framework connexion that contains an endpoint definition.