DTr1 URL

URL Universal Resource Locator

Datatype Release 1: URL

Registered Attributes and Child Elements

@Attribute / Element	Cardinality	Datatype
@value	optional	st
@nullFlavor	optional	cs

Core Schematron Rules CSR

The following rules are defined in the base core schematrons.

Rule ID: URL Extends Rule(s): ANY Constraints dtr1-1-URL: elements of type URL SHALL have a @value attribute. dtr1-2-URL: @value must be a valid URI, e.g. .

Additional Strict Schematron Rules SSR

The following rules are defined in the strict mode of core schematrons.