The most complex aspect of application maintenance and migration is analyzing and understanding
the code. There are three components of Toolkit Feature that can help:
ASMXREF
Can locate all uses of a variable name or any character string. You can also produce a Tagged
Source Program.
ASMPUT
Provides graphical views of control flows within and among programs and modules.
IDF
Helps you monitor and track the behavior of individual instructions and data items.
Figure 1. Toolkit Feature: Analysis and Understanding
Phase
While each of these components has valuable capabilities, using
them in combination can provide great synergy in analyzing and understanding
program behavior.
