DDEX Data Dictionary, 19-03-22

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Intro

lraw:MessageHeader

A message term for lraw:LinkResourceAndWorkMessage, lraw:LinkAcknowledgementMessage, lraw:LinkRequestMessage.

A Composite placed at the beginning of each DdexMessage providing information about the Message, such as MessageSender, MessageRecipient and a Message creation time stamp.

Component Structure
Components	Name	Description of Element Role	Cardinality	Data Type
	LanguageAndScriptCode	The Language and script for the Elements of the ddexC:MessageHeader as defined in IETF RfC 5646. The default is the same as indicated for the containing composite. Language and Script are provided as lang[-script][-region][-variant]. This is represented in an XML schema as an XML Attribute.	0-1	String (xs:string)
	XmlSequence		1
	| MessageThreadId	A xs:string used to uniquely identify the thread of Messages of which the current Message is a part. The MessageThreadId shall be, in combination with the DdexPartyId (DPID) of the MessageSender, globally unique. Thus, a MessageSender shall never re-use a MessageThreadId. One example of such a 'thread' is the chain of NewReleaseMessages being sent from ReleaseCreator to wholesale ReleaseDistributor 1 to retail DSP when communicating information about the same Release(s). A common MessageThreadId will allow all these messages to be tied together.	0-1	String (xs:string)
	| MessageId	A xs:string used to uniquely identify the current Message. The MessageId shall be, in combination with the DdexPartyId (DPID) of the MessageSender, globally unique. Thus, a MessageSender shall never re-use a MessageId.	1	String (xs:string)
	| MessageFileName	The FileName, possibly including the FilePath, of the XML File containing the current Message.	0-1	String (xs:string)
	| MessageSender	A Composite containing details of the MessageSender.	1	ddexC:MessagingParty
	| SentOnBehalfOf	A Composite containing details of the Party on whose behalf the Message is sent.	0-1	ddexC:MessagingParty
	| MessageRecipient	A Composite containing details of the MessageRecipient. Note that if multiple MessageRecipients are provided, all of them will be able to read this information.	1-n	ddexC:MessagingParty
	| MessageCreatedDateTime	The DateTime on which the Message was created (the only allowed format is ISO 8601:2004: YYYY-MM-DDThh:mm:ssTZD).	1	DateTime (xs:dateTime)
	| MessageAuditTrail	A Composite containing information about Parties in between the original MessageSender and ultimate MessageRecipient.	0-1	lraw:MessageAuditTrail
	| MessageControlType	The indicator used to distinguish a live Message from a test Message.	0-1	avs:MessageControlType
Is Member of Composites	Composite Name	Description of Element Role	Cardinality
	lraw:LinkAcknowledgementMessage	The MessageHeader for the lraw:LinkAcknowledgementMessage.	1
	lraw:LinkRequestMessage	The MessageHeader for the lraw:LinkRequestMessage.	1
	lraw:LinkResourceAndWorkMessage	The MessageHeader for the lraw:LinkResourceAndWorkMessage.	1

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