# Idempotency

Term `idempotency`. Repeating an operation produces the same intended observable outcome as performing it once.

Practitioner: Joe Reis, Matt Housley. Read in: *Fundamentals of Data Engineering*, Part II, Ch. 5 Message Queues.

## Skills
- [uncomplect](/skills/uncomplect)

## Sources
- Reis, Joe; Housley, Matt. *Fundamentals of Data Engineering*. O’Reilly. [Link](https://www.oreilly.com/library/view/fundamentals-of-data/9781098108298). ([b6-fundamentals-of-data-engineering](/bibliography#b6-fundamentals-of-data-engineering))