DDEX Data Dictionary , 2012-02-14

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Intro

Type

A supporting term for the messages.

A Class whose members are themselves Classes.

Synonym(s) ClassType

Comments	Scope: A Type is a Class of Classes: that is, the instances of Types are themselves Classes. Types include all 'allowed value' lists: for example, TitleType, ResourceType. Types are often formed from the children of a Term (for example, all the SubClasses of Title may form the instances of TitleType), but the grouping of Types may be based on any common attributes, or may be entirely arbitrary.
	Example: ImageType is a Type whose members include the Classes 'Photograph' and 'Logo'.

Relationships
Parents	Class	A group of Entities sharing one or more common attributes.
Children	CategoryType	A Type of Category.
	ContextType	A Type of Context.
	DescriptorSyntax	A Type of a Descriptor according to how it is defined syntactically.
	DescriptorType	A Type of Descriptor.
	InstrumentType	A Type of (musical) instrument.
	SheetMusicCodecType	A Type of SheetMusicCodec.
	SheetMusicType	A Type of SheetMusic.
	UserDefinedResourceType	A Type of Resource defined in a way which is UserDefined.

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