// service · Assessments
OT Architecture & Controls Assessment
A defensible OT architecture for industrial operations — segmentation, IDMZ, and control gaps assessed against a target state that survives a CapEx review and the board.
Most OT architecture reviews end the same way: a heat map and a stack of recommendations land on the CISO’s desk, the findings cannot survive a CapEx review, and the architecture story falls apart at the board. Six months later the plant runs the same risks it ran on day one.
This assessment measures your current architecture against a defensible target — segmentation and zoning, the IT/OT boundary and IDMZ, remote access, and the controls protecting each level — aligned to IEC 62443 and the Purdue model. Every gap is tied to the operation it exposes.
You get a phased, costed architecture roadmap that holds up in front of finance and the board, with the work sequenced into Resilion so design decisions become tracked execution.
Frequently asked questions
- What does the architecture assessment review?
- Network segmentation and zoning, the IT/OT boundary and IDMZ, remote access, and the security controls protecting each level — mapped against a reference architecture aligned to IEC 62443 and the Purdue model.
- Why do most architecture reviews fail?
- They end as a heat map and a stack of recommendations that cannot survive a CapEx review, so the plant runs the same risks a year later. We tie every gap to consequence and a costed, phased plan finance can fund.
See Resilion on your fleet
Book a 30-minute demo. We will show how Resilion turns your existing assessments into a program you can run and prove.