Diagram-Master 5.01
Released in 1985 by Decision Resources Inc
For DOS

Diagram-Master is a graphics tool specifically geared toward making
organization and Gantt charts. It can produce very high-quality
presentation graphics using laser printers and plotters. Supports
CGA, EGA, and the IBM Professional Display.

Diagram-Master was often sold along side Chart-Master, and Sign
Master. For a time these were among the best selling software.

IMPORTANT: This software is copy protected.

The DIAGRAM-MASTER program comes on five 5 1/4-inch copy-protected 
diskettes:

Diskette 1, the Main Program diskette 
Diskette 2, the Drawing Board
Diskette 3, Organization Charts
Diskette 4, Gantt Charts
Diskette 5, the Library Disk