says that the elements within your content model may appear in any order.
must be the only content model declaration that appears as a child of a definition.
cannot contain , , or declarations.
declaration's children may appear once each in the instance document.
Within the , the values for minOccurs/maxOccurs are limited to 0 or 1.
is used when the expected content is known, but not the order.
Suppose you declared the content model using the :
The allowable content for a element declared using an declaration might include
first
middle
last
or
first
last
middle