Test the Solution
If you have only one system, your process of sequential changes automatically ends up with the proper changes made to the system. If you have multiple systems or if you're dealing with a product that you have in multiple locations, you can then make the changes all at once to all of the other systems. Be aware, though, that systems that are supposed to be alike are not necessarily alike. Monitor the performance after the changes just to be sure that somebody's unique configuration does not interfere with the success of your changes. There are several questions to ask.
Does it Solve the Immediate Problem?
This should be fairly simple to determine. You've been focusing on this problem for a while, and you shouldn't have any problems ...
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