HP 3000 Manuals

HP ALLBASE/4GL Developer Reference Manual Vol. 2

Master Titles 

Some logic commands allow you to use master titles.  When HP ALLBASE/4GL
encounters a reference to a master title, it initially searches for an
application title with the same name.  If such an application title does
not exist, HP ALLBASE/4GL uses the named master title.

You cannot use direct references to application titles in any logic
command.

MPE/iX 5.0 Documentation