metadata catalog harvesting

A publishing model in which a central catalog aggregates dataset metadata from many publishers instead of hosting files.

Data.gov indexes 552,271 records harvested continuously from agency DCAT-US listings under the OPEN Government Data Act.

In this catalog it appears concretely: - Data.gov Catalog - Telecommunications & Carrier Datasets (what it publishes) — "Data.gov is the U.S. federal open-data metadata catalog (552,271 datasets at time of research)". - data.gov packaging record (terms of use) — "and". - GSA data.gov (terms of use) — "the OPEN Government Data Act makes publishing to it a statutory requirement using machine-readable formats".

Conventions decide whether two sources can be joined at all. Buy one side of an analysis that ignores this convention and every reconciliation step — calendar alignment, unit conversion, entity matching — lands on your team instead of the vendor's.

The failure mode is concrete: a source can carry the metadata catalog harvesting label while differing from what you need on exactly the dimension that matters — Data.gov is the U.S. federal open-data metadata catalog (552,271 datasets at time of research). Comparing two sources on that line usually settles the choice faster than any feature matrix.

You rarely have to take a vendor's word for it. 82.4% of the 1,744 datasets Datadory catalogs are free to access, and Data.gov Catalog - Telecommunications & Carrier Datasets lets you inspect the real artifact before any budget is committed.

Treat every claim of this attribute as testable:

1. Read Data.gov Catalog - Telecommunications & Carrier Datasets's record on what it publishes — "Data.gov is the U.S. federal open-data metadata catalog (552,271 datasets at time of research)" — then confirm the delivered artifact matches before you license anything. 2. Read data.gov packaging record's record on terms of use — "and" — then confirm the delivered artifact matches before you license anything. 3. Read GSA data.gov's record on terms of use — "the OPEN Government Data Act makes publishing to it a statutory requirement using machine-readable formats" — then confirm the delivered artifact matches before you license anything. 4. Pin down update cadence in writing.

Adjacent concepts worth reading next: - dcat metadata schema - commercial delivery terms US government data