What is Service Mapping in the ServiceNow ITOM module?

The main job of Service Mapping is to determine, which devices on the company network, work together to perform which specific operation. Why is this important? First of all, it is important to understand that in large companies, it takes multiple devices (computers, routers, printers and other devices depending upon the task) to perform one specific operation. For example, the Customer Order System (online shopping platforms, where the customers add stuff to their cart, checkout, make payment and buy stuff etc.) takes multiple machines to run. The front-end of the customer order system might be in one server, the REST API might be in a second server, and the database of the customer order system might be in a third server etc. And these servers are connected together via routers. So, if a router was to fail somewhere in the company, especially in a large company with hundreds of servers and routers, it would be very difficult to determine, which operation would go down with it. Whether this failed router was working with the multi-million-dollar Customer Order System or was it simply working with the smart coffeemaker (yes, smart coffee makers can also connect to networks)? Now of course, if only the coffeemaker went down with the failed router, this would not be an urgent matter but if the multi-million-dollar customer order system went down with that router, that would be a huge problem that would require an urgent solution. But to determine if a failing network device is an urgent problem or not, Service Mapping helps the IT team determine, which function is affected when that network device fails.

To Summarize, the main job of Service Mapping is to determine, which devices on a company's network work together to perform which specific operation. So that if a device fails, the IT team knows exactly which specific operation went down with it.

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