Transaction

A transaction is any transfer of anything such as data, messages, resources, and work products from one party to another. A transaction may refer to:

• Financial transaction or adjusting transaction in finance.
• Market transaction in marketing.
• Database transaction in database management systems.
• Social interaction in interpersonal communication.

Definitions

According to the ITIL Foundation 4e by Axelos,

Transaction. A unit of work consisting of an exchange between two or more participants or systems.