IT Services are not easily identifiable. They cannot be added to inventory as technical objects.
The first difficulty in identifying a Service comes from the fact that it does not exist as a physical or logical object. Service is not material. It cannot be seen or detected as such, like the objects composing it, but only partially through them (for instance, through Monitoring tool capabilities). No wonder that in organizations operating in silos, it is so difficult to share such a transverse notion as IT Service. Only a man-made description makes it possible to completely reconstitute the various contributions of components in an IT Service. This is the main objective of CMDB, which greatly helps materializing relations between components and their contribution to IT Services.
We would like to share a progressive approach from gross and easy-to-start techniques to finest and more accurate ones. Please comment on our vision from your experience.