Positional operands (except delimiter and space) and keyword operands can have default values. These default values are indicated to the Parse Service Routine through the DEFAULT= operand of the IKJPOSIT, IKJTERM, IKJOPER, IKJRSVWD, IKJIDENT, and IKJKEYWD macro instructions. When a positional or a keyword operand is omitted, for which a default value has been specified, the Parse Service Routine inserts the default value.

The Parse Service Routine also inserts the default value you specified if an operand is not valid and the terminal user enters a null line in response to a prompt.