278 C h a p t e r 13 · S e r v e r Tr o u b l e s h o o t i n g Asking these kinds of questions causes you to evaluate factors that are more related to the actual system you have in place and less related to the vendors that have provided the components. Indeed, if a vendor has provided you with bad components over a period of time, you will likely discontinue partnering with that vendor; however, automatically blaming a problem on a vendor does not help you solve the problems you are facing right now. For that, you need sys- tems thinking and a good methodology. Whether you adopt one or more of these methodologies, pursue another methodology, or create one of your own, you should consider how to trouble- shoot problems and then make sure you use an efficient and effective process. i T i l A n D T R o u b l e s h o o T i n g The Information Technology Infrastructure Library (ITIL) is a set of docu- ments that define best practices for technology management. ITIL was initially created by the United Kingdom Office of Government Commerce, but it has found widespread acceptance in IT departments around the world.