Schemas & Validation
Download the OASIS Akoma Ntoso v2.0 schema files (akomantoso30.xsd, xml.xsd) with license notes, the specification URI vs schema targetNamespace explanation, and Level-1 XSD validation guidance.
Schemas & Validation (site editorial)
Site-authored editorial supplement, not part of any OASIS document: the OASIS Akoma Ntoso v2.0 schema files (akomantoso30.xsd, CC BY 4.0), the specification URI vs schema target namespace split, and Level-1 syntax validation guidance.