Let's say, I have a test flow where I test creating and editing a blog post. I've extracted ID of the post that has been created and now I want to use it in the following requests of the same flow. This is a classic example of a self-contained test and It will work regardless of the execution scope selected. But in case I would like to use the post ID parameter in another flow of the Test Suite I should use the "Entire Test Suite Run" scope, otherwise, Loadmill won't recognize that parameter.