sdg:preferredPrefix
sdg:preferredPrefix records the conventional short prefix for a declared namespace — "sdp" for the presentation vocabulary, "prod" for the demo's production-projects namespace. Editors and generators use it when offering @prefix declarations and when rendering terms compactly, so the whole corpus abbreviates a namespace the same way.
It is deliberately a string literal: a prefix is a lexical convention layered on top of the namespace identity, not part of it. The identity is the IRI carried by sdg:declaresNamespace; two corpora could abbreviate the same namespace differently without disagreeing about what the namespace is.
Usage
- Domain:
sdg:NamespaceDefinition. Range: string literal, without the trailing colon. - One per namespace document.