A step defines attributes to be used at runtime for a specified step program in the context of the specified procedure. You can also add steps that reference your own custom step programs. Steps are controlled by the procedure for which they are defined.
When an application group is created, each of the automatically created procedures has a default set of predefined steps.
When a system definition is created, procedure status records associated with the new system definition for each *NODE procedure are created with *NEW status.