Customizing the metamodel > Keywords for USRPROPS > BOOLEAN
  
BOOLEAN
BOOLEAN appears in a Definition dialog as a check box. It has one of two values: True (T) or False (F).
Example
In the following example, the user can turn the Hierarchical Numbering features on an IDEF0 diagram on or off by selecting true or false.
DIAGRAM "IDEF0"
{
PROPERTY "Hierarchical Numbering"
{ EDIT Boolean LENGTH 1 DEFAULT "F" }
...
}
See also
Keywords for USRPROPS