Key takeaways
For an IT/OT manager, a CMMS is one more system to integrate, secure, and keep running. The maintenance features matter less than how the software behaves inside the wider technology estate. Get that wrong and a useful tool becomes a long-term liability.
A CMMS rarely lives alone. It needs to exchange data with ERP, historians, and sometimes the machines themselves. The IT/OT manager looks for clean APIs and standard integrations, because heavy custom connectors are fragile, expensive, and a barrier to future upgrades.
Connecting maintenance software to operational technology raises real questions: who can access what, where data lives, and how the link to machines is secured. Strong access control, auditability, and clear data residency are not nice-to-haves for this role; they are gating requirements.
Cloud or on-premise, single sign-on, how upgrades are handled, all decide how much ongoing work the system creates for IT. A platform that fits existing identity and security tooling and updates without manual effort carries a far lower burden than one that needs constant hand-holding.
An IT/OT manager evaluates two CMMS options. One offers standard APIs, single sign-on, and clear security documentation; the other needs custom integration work and a separate login. The first fits the stack and the security model with little overhead; the second adds an island to manage and a new attack surface. The maintenance features were similar; the architecture decided it.
Connecting maintenance to live production data, including OEE, multiplies the value of a CMMS, but it also multiplies the integration and security work. An IT/OT manager wants that connection done through clean, secure interfaces rather than brittle custom links. Book a Fabrico demo to see how connected maintenance and OEE data can fit an existing architecture. See also cloud versus on-premise CMMS.
Clean integration with existing systems, strong access control and data governance, secure connectivity to operational technology, and a fit with existing identity and update tooling to keep the IT burden low.
It can be, which is why the link must be secured deliberately, with access control, auditing, and clear boundaries. Done properly, the production data it unlocks is well worth the managed risk.
CMMS deployment in manufacturing sits at the intersection of IT and OT, a zone of increasing complexity as cloud systems connect to plant-floor control networks.
The CMMS procurement process frequently involves IT signing off on security without OT involvement, or vice versa. Both patterns create costly post-contract implementation problems.
The central network security question: how does machine data move from the OT network to the cloud platform? Three architectures exist:
Request a network architecture diagram showing exactly where connectivity occurs and which architecture they support. Vendors who cannot produce this diagram have not thought through the OT security implications of their integration approach.
Use this checklist to complete your CMMS vendor security review:
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