After a program is created, it might need to be changed to address problems or revised user requirements.
When a program is in production, it is optimized for performance and reduced to its minimum size.
When you debug a program, you need to be able to:
When you create a listing view, you add the data required to observe the behavior of the program. See Creating a Listing View for Debugging.
During a debug session, you can lower the optimization level of a module to display variables accurately as you debug the program, and then raise the level again afterwards to improve the program efficiency as you get the program ready for production.
After a debug session, you can remove module observability to reduce the size of the module.
This chapter describes how to:
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