Contains a collection of Key elements used to identify the member keys of the attribute member represented by the parent Attribute element.
<Attribute> ... <Keys> <Key>...</Key> </Keys> ... </Attribute>
Characteristic
Description
Data type and length
None
Default value
Cardinality
0-1: Optional element that can occur once and only once.
Relationship
Element
Parent elements
Attribute
Child elements
Key
