Manufacturing runs on two worlds that rarely share a source of truth: the IT estate and the operational technology (OT) that runs the plant floor — PLCs, SCADA, historians, and industrial control systems. As IT and OT converge, the questions get harder: what is actually connected, what depends on what, and what happens to production when something fails? Four Dragons implements ServiceNow ITOM for manufacturers so IT and OT resolve into one trusted CMDB, safely.
Why OT makes Discovery harder
You cannot point aggressive, credentialed Discovery at fragile industrial control systems the way you would at a data center — the risk to production is real. OT visibility calls for careful, low-impact approaches and integration with the systems that already watch the plant floor, feeding that data into the CMDB rather than probing devices directly. Done wrong, you disrupt production; done right, you finally see the whole estate.
What we fix
- Discovery coverage across IT and, through safe integrations, OT — so the CMDB reflects the real plant.
- Service Mapping that ties production-critical services to the infrastructure and control systems beneath them.
- Event Management that cuts alert noise and surfaces what actually threatens production uptime.
- A CMDB you can trust as the foundation the rest of the platform depends on.
The Four Dragons approach
We stand up Discovery, Service Mapping, and Event Management on a CMDB you can trust, taking OT sensitivity seriously at every step, and hand the capability back to your team. Underneath most manufacturing ITOM problems is a skills gap, not technical debt.
Frequently asked questions
Will ServiceNow Discovery disrupt our OT or plant-floor systems? Not when it is done correctly. Industrial control systems require low-impact approaches and integration with existing OT monitoring rather than aggressive probing. The goal is visibility in the CMDB without touching production stability.
Can ServiceNow bring IT and OT into one CMDB? Yes — through appropriate Discovery for IT and safe integrations for OT, both worlds can be represented in a single trusted CMDB, which is what makes cross-domain impact analysis possible.
Four Dragons is a boutique ServiceNow consultancy delivering CMDB/CSDM, ITOM, ITAM/SAM, SPM, and Agentic AI outcomes. fourdragons.com