The Object REXX Programming Guide describes the Object-based REstructured eXtended eXecutor, or Object REXX programming language. (When not comparing it to its traditional predecessor, we just call it REXX.) REXX is an integral part of IBM Operating System/2 (OS/2).
This information is aimed at developers familiar with OS/2 who want to use REXX to do object-oriented programming--or some mix of traditional and object-oriented programming--with the shortest learning curve possible.
This information assumes you are already familiar with the techniques of traditional structured programming, and uses them as a springboard for quickly understanding REXX and, in particular, Object REXX. This "no frills" approach is designed to help experienced programmers get involved quickly with the REXX language, exploit its virtues, and become productive fast.