This part provides an overview of the TSO/E customization process and introduces TSO/E exits. Before you start to customize TSO/E, IBM® suggests that you develop a customization plan. In the plan, identify specific customization that you intend to do and how you intend to do it.

Customization overview, provides information to help you develop that plan. There you can read a short summary about each customization task that will help you decide whether to do that task. If you need more information to help you plan, a pointer directs you to another topic in this document or to another document.

Writing exit routines, introduces the exits that TSO/E provides. The introduction includes a list of the exits, a summary of the ways you can use each exit, and a pointer to detailed information you need for coding the exit. This chapter also discusses the standard exit interfaces and exit installation.