commercial delivery terms attribution

Under the Open Database License, attribution is not a courtesy - it is a licence condition. Reusers must name the source(s) in the form the licensor specifies.

The cataloged transport records make the chain explicit. Overture Maps Transportation Theme licensing notes read 'Transportation - License for theme: commercial delivery terms (c) OpenStreetMap contributors' and separately pin the exact string: 'Required attribution line: (c) OpenStreetMap contributors, Overture Maps Foundation'. The same notes add that 'downstream users must respect commercial delivery terms share-alike obligations'. The upstream source says the same more briefly - the Overpass API record lists 'commercial delivery terms 1.0 (OpenStreetMap open data)' with reuse crediting '(c) OpenStreetMap contributors under commercial delivery terms'. So a map tile, routing engine or logistics dataset built on Overture roads carries both names, and any derived database inherits the share-alike rule.

Attribution errors are the most common commercial delivery terms breach because they happen after delivery - in a map's corner, an app's about page, or a CSV's README that never shipped.

When data passes through an aggregator like Overture, the correct credit grows to 2 names: crediting only OpenStreetMap omits the foundation that packaged the theme, while crediting only Overture drops the underlying licensor. Products embedding transport geometry in customer deliverables therefore need the full line wherever the data appears, not just once centrally. And because share-alike rides along, a vendor selling 'cleaned' road data without the notice is handing you a licence problem disguised as convenience. Verifying the attribution string belongs in acceptance testing, next to schema checks.

1. Require the exact line. Overture specifies 'Required attribution line: (c) OpenStreetMap contributors, Overture Maps Foundation' - paraphrases do not satisfy it.

1. Trace the licence upstream. The theme is commercial delivery terms '(c) OpenStreetMap contributors'; check that any intermediary preserves the OSM credit.

1. Treat share-alike as part of attribution. Overture's notes bind downstream users to 'commercial delivery terms share-alike obligations' - the notice and the copyleft travel together.

1. Check Overpass-sourced extracts too. Direct Overpass responses require credit '(c) OpenStreetMap contributors under commercial delivery terms' - the same duty without Overture in the middle.

Attribution is one half of the commercial delivery terms bargain; these entries cover the release mechanics and query language around OSM-derived transport data.

• geoparquet-cloud-native-release
• overpass-ql