Can I Have Your Cheeseburger? ITOM and ITSM in Simple Terms
Defining your terms is always a good place to start. The Gartner Information Technology Glossary has definitions for ITSM[ii] and ITOM[iii], but frankly, both are dense. Let me give you an analogy instead. You want to get a cheeseburger at Dicks, a Pacific Northwest restaurant icon. You walk up to the window and tell the cashier you want a cheeseburger. The cashier enters your order in her till, which sends your order to the kitchen. Another employee runs your cheeseburger to your window. In this analogy, Dicks is your IT department, the cheeseburger is an IT service, and all the things needed to fill your cheeseburger order fall into the realm of ITSM. That is, ITSM encompasses everything needed to deliver IT services to others. The consumers of those IT services might be members of the IT department, other employees in different departments, or external customers. In contrast, ITOM covers the things needed to support the network infrastructure delivering the IT services. In our analogy, ITOM is the grill, the fryer, the freezer, and the mop to keep the kitchen floor clean. The consumers are largely the IT department itself. Of course, ITSM and ITOM are interdependent. You can’t deliver IT services without a functioning IT operation, and for the most part, an IT operation’s raison d’être is to deliver IT services. This interdependence makes the argument about which is more important a bit silly; you can’t have one without the other. Still, ITSM gets more press because of who consumes it. After all, everyone might need services—even members of the IT department themselves—and an outage affecting IT operations only “matters” if the outage also impacts service delivery. But just because one is the flashy sister doesn’t mean the other isn’t as important. In real life, ITOM includes physical things like switches, servers, and firewalls in the data center or enterprise network and all the tools needed to make sure everything runs to spec. These tools might include the following things:- Performance monitoring tools
- Configuration management
- Security, intrusion detection, and prevention
- Troubleshooting tools
[i] See https://www.themuse.com/advice/your-ultimate-cheat-sheet-to-deciphering-the-123-most-common-business... , https://7esl.com/business-acronyms/, and https://abbreviations.yourdictionary.com/articles/business-word-abbreviations.html 2M2H, IMO.
[ii] https://www.gartner.com/en/information-technology/glossary/itssm-tools-it-service-support-management... [iii] https://www.gartner.com/en/information-technology/glossary/itom-it-operations-management-software