Note that all schema supplied by the UPnP Forum AV WC committee are for informational use only and that the standardized DCPs describe the normative requirements for these schema. Some schema provided do not necessarily embody requirements regarding number of element occurrances allowed or their ordering. Schema for UPnP A/V AV Dependent property name that has no associated independent property. MAY include namespace prefix MUST NOT include independent property name General property name type MUST include independent property name MAY include namespace prefix MAY include dependent property name Disallows fractional seconds string.domainNamePrefixed == Domain Name Prefix type This type is defined in ContentDirectory:2 and ScheduledRecording:1 as string.domainNamePrefixed ::= domain-name '_' string Therefore, the only requirement imposed here is the occurrence of at least one underscore that has at least one character before and after it. Use this type wherever extensions to a simpleType are allowed by the specification, but they are disallowed for testing validation purposes. Use this group wherever element extensions are allowed by the specification, but they are disallowed for testing validation purposes. Use this group wherever attribute extensions are allowed by the specification, but they are disallowed for testing validation purposes. Use this type wherever extensions to a simpleType are allowed by the specification, and no constraints are imposed for testing validation purposes. Use this group wherever element extensions are allowed by the specification, and no constraints are imposed for testing validation purposes. Use this group wherever attribute extensions are allowed by the specification, and no constraints are imposed for testing validation purposes.