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# Device Graph
- URL: https://www.adlingo.org/glossary/device-graph/
- Published: 2025-01-15T11:15:00.000Z
- Updated: 2025-01-15T11:15:00.000Z
- Description: A mapping of relationships between different devices owned by the same household or user, used for cross-screen targeting and measurement.
- Author: Travis Lusk
- Tags: Programmatic, #glossary, #Import 2026-10-27 17:05

A database that links devices to households or individuals. The living room smart TV, the bedroom tablet, and the phone in someone's pocket are all the same household. A device graph identifies those connections using deterministic signals (logins) or probabilistic ones (IP address, location patterns, browser behavior). Deterministic is more accurate. Probabilistic has more scale. Most graphs use both.