From Wiktionary, the free dictionary
run book (plural run books)
- (computing) A set of procedures prepared by an administrator for the day-to-day maintenance and exception handling of an IT system.
- Coordinate term: playbook
2021, Arthur Conklin, Greg White, Chuck Cothren, Roger L. Davis, Dwayne Williams, Principles of Computer Security, McGraw Hill, →ISBN, page 542:Security administrators can create a series of runbooks and playbooks that can be used in response to a wide range of incident response activities.