(1) A logical or virtual connection between two stations, software programs, or devices on a network that allows the two elements to communicate and exchange data. See also SQL connection, transaction.
(2) A type of resource that controls local logical units (LUs), remote LUs, modes, and attachments.
(3) In Java EE, an object used by a servlet to track a user's interaction with a Web application across multiple HTTP requests.
(4) In a distributed application, a single conversation between a communicating pair of transactions. See also conversation.
(5) A series of requests to a servlet originating from the same user at the same browser.
(6) A collection of process groups established for job control purposes.