CUA is a set of guidelines for the user interface to operating systems and computer programs, developed by IBM and first published in 1987 as part of their Systems Application Architecture. Used originally in the OS/MVS, VM/CMS, OS/400, OS/2 and Microsoft Windows operating systems, parts of the CUA standard are now implemented in programs for other operating systems, including variants of Unix. It is also used by Java AWT and Swing.

The first menu should be called "File" and contain operations for handling files (new, open, save, save as) as well as quitting the program; the next menu 'Edit' has commands for undo, redo, cut, copy, delete, paste commands;