Question about " Workflow Directory Services User/Role Validation"

Hi Experts

when we run Workflow Directory Services User/Role Validation

we found it have the following parameters

Batch size

User name

Role name

Fix dangling users

Add missing user/role assignments

Update WHO columns in WF tables

Number of Parallel Processes

In the document below,It has explanation about these parameters except User name and Role name

Oracle Workflow Administrator's Guide

Oracle Workflow Administrator's Guide

Release 12.1

Part Number E12903-04

If we input value to User name,does Workflow Directory Services User/Role Validation will only

correct the information about this user and don't effect other users?

Thanks