Order Indicators

Order Indicators:

These indicators specify the order and they specify whether the child elements are mandatory or not?

1.       Sequence:

This indicator indicates that child elements are mandatory and the order of child elements is fixed.

2.       All:

This indicates that all the child elements are mandatory but the order is not fixed.

3.       Choice:

This indicator specifies that we can use any one of the child element

Occurrence Indicators