As most of us are already aware, the business of IT has become even more critical in ensuring the overall success of an organization. In today’s fast pace and fluid environments the statement that “every business decision triggers and IT event” is becoming increasingly true for those of us who operate in the world of ITSM. One of the most valuable tools that we can employ is our service catalog. In a mature ITIL organization we can have two views of this catalog. The first being the Business/Customer catalog where we connect our customers/users to the standard IT services that we offer, deliver and support. The second view is the Technical/Supporting service catalog, which when appropriately maintained is a very powerful tool that allows us to relate IT services to our supporting services and the underlying supporting infrastructure. It is this second view that we will review here. Our service catalog provides us with a central source of information on all of the IT servi