This is the date that this instance was created. This date is defined by the source if imported, or is the date the instance is created if a new instance.
This is the date that this instance was last updated. This value should be updated when any part of this instance is altered (except for inverse relationships).
The provider of this instance, which is usually a data provider for imported/purchased data. If this instance is provided by POSC, then this attribute must be "POSC".
These are the document specification parts that include this data value and define its meaning within a document specification. Each use may define a different meaning, and many uses are allowed. Each e_and_p_data may be included in one or more document_information_content.