The child pages of this section provide rules and recommendations for metadata provision, that satisfy the requirements using ISO 19115 elements and the ISO 19139 XML Schema.

The following table structure is used throughout. Each table is followed by a fragment of the XML based on ISO 19139.

Requirement	Reference	The requirement number
	Element Name	The requirement short title
	Obligation / Condition	States whether the element is mandatory.
	Multiplicity	The number of occurrences of the element.
ISO 19115 (2003)	Number	The number that identifies the metadata element inside tables in ISO 19115.
	Name	The name of the metadata element in ISO 19115.
	Definition	The current ISO 19115 description.
	XPath	This xpath expression identifies the metadata element within the ISO 19115 UML model.
	Data type	The data type allowed.
	Domain	The list of allowable values.
	Example	An example of a value that is acceptable.
Implementing Instructions		Notes on how best to implement the requirement.

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