Core DOOH & OOH

Play

A single playout of a creative on one screen. The raw count of how many times an ad was displayed, before any audience weighting.

Also known as: playout, ad play

Related terms

Proof of Play A log confirming that a specific creative played on a specific screen at a specific time. The basis for billing and campaign verification in DOOH. Impression A counted exposure of an ad to a person. In DOOH it is the foundational unit of currency, but the exact definition varies by standard — from a raw play, to an opportunity-to-see, to a viewability-qualified audience impression. Loop A fixed-length block of content and ad slots that repeats on a set interval. Example: a six-minute loop with 11–15 second ad positions repeating 10 times an hour gives 10 plays per message per hour.