Glossary

Artifact — a CEDAR template, element, field, or instance.

Schema artifact — an artifact that describes the shape of metadata: a template, element, or field.

Instance artifact — an artifact that holds metadata: a template instance or element instance.

Template — a complete metadata specification, built from elements and fields.

Element — a reusable, nestable group of elements and fields.

Field — an atomic unit that collects one value or a list of values.

Instance — filled-in metadata conforming to a template.

Controlled term — a value drawn from a controlled vocabulary, identified by an IRI.

Value constraint — a declaration of the terms a controlled-term field may take.

Attribute-value field — a field whose instance author supplies both the attribute names and their values.

Provenance — the record of who created and modified an artifact, and when.

Key — for a nested child, the name identifying it within its parent and binding its value in an instance.