message oriented transfer integrated file (MOTIF)
Message Oriented Transfer Integrated File (MOTIF) is a library developed by the Open Software Foundation( OSF) for developing graphical user interfaces( GUI) under Unix. Motif is characterized by a high functionality, uses X-Window version 11(X11) and uses a special language to describe the graphical user interface.
Motif is one of the first development tools, it is increasingly replaced by the Gimp Toolkit( GTK).