Stub entry: single definition derived from the NIST trustworthy-AI glossary; sector-specific readings not yet documented — contributions welcome.
Specification of what may be contained in a data or metadata set in terms of the content or, for data only, in terms of the set of key combinations to which specific attributes (defined by the data structure) may be attached.
NIST AIRC, The Language of Trustworthy AI glossary (public-domain compilation), entry 'constraint', definition attributed to OECD