Interface IDSRequirement

The raw @cardinality attribute string from the XML, when present but not equal to one of the canonical XSD enum values (required / optional / prohibited). Preserved so the auditor can flag values like "Required" or "Invalid" that the parser silently mapped to the default. undefined when the attribute was absent or already canonical.

Human-readable description

The facet that defines what must be satisfied

Unique identifier

Instructions for achieving compliance

Optionality of this requirement