Document Attributes

System Attribute	Description
SenderID	Identifier for the sender of a document.
ReceiverID	Identifier for the receiver of a document.
DocumentID	Unique identifier for a document.
UserStatus	Status that you or a partner assign to a document (for example, Needs Approval).
GroupID	Identifier that associates a document with other documents in a group. Grouping documents is helpful for end users doing document searches.
ConversationID	Identifier that associates a document with other documents that are processed by a business process (also called a conversation of documents). For information about business processes, see Business Process Definition. This identifier is only present if you are using BPM. You need to extract it from the document and add it to the document type. The transaction with the ConversationID then gets attached to the business processes.
SignedBody	For XML documents, data that was digitally signed to create the digital signature for the document.
Signature	For XML documents, digital signature of the document.

To use extracted attributes as a criterion for using a particular processing rule. For example, if you want to use one processing rule if the sender is Partner A and another processing rule if the sender is Partner B, you would extract the system attribute SenderID. Or if you want to use a particular processing rule when the receiver is Partner C and the total order amount is greater than $10,000, you would extract the system attribute ReceiverID and the custom attribute Total_Order_Amount.

To perform certain processing actions that require extracted attributes. For example, if you want to deliver a document to the receiver partner, you would extract the system attribute ReceiverID. If you want to verify the digital signature of an XML document, you would extract the system attributes SignedBody and Signature.

To search for documents in My webMethods based on extracted attributes. For example, if you want to be able to find documents that were sent by Partner A for which the total order amount is greater than $10,000, you would extract the system attribute SenderID and the custom attribute Total_Order_Amount.

If you BAM-enable Trading Networks and you want to pass extracted attributes to Optimize for B2B for analysis and monitoring. For example, if you want to generate a report on the purchase order quantity for a particular sender from a particular receiver, you would extract the custom attribute PO_Quantity and the system attributes SenderID and ReceiverID.