ded:ElementName: ElementObligation
ded:ElementDefinition: An indicator of whether the Data Element MUST be populated
in all cases (i.e., Mandatory); or if the Data Element is NOT required (i.e., Optional);
or whether specific conditions for populating it are specified in ElementRestriction
(i.e., Conditional). ?If conditional, then the condition should be defined in either
ElementRestrictions or the Relationship Metadata section.
ded:ElementId: ded:ElementObligation
ded:EnumerationLocation: XSD type
ObligationEnumType