OT/IT convergence is the architectural discipline that lets enterprise platforms consume plant data without compromising the safety-instrumented-system integrity that determines whether the plant runs safely. The work begins with a current-state Purdue Model assessment, a network-segmentation audit against IEC 62443 zones and conduits, and a data-flow inventory that distinguishes telemetry suitable for cloud aggregation from control traffic that must remain inside the plant boundary. A senior consultant produces a target-state network architecture aligned to IEC 62443-3-3 system security requirements, a data-diode or unidirectional-gateway design where required by safety case or regulator expectation, an asset inventory that satisfies National Institute of Standards and Technology (NIST) SP 800-82 industrial-control-system guidance, and an OT incident-response playbook integrated with the enterprise SOC. Deliverables include the segmentation design, the asset inventory, the data-flow contract between OT and IT platforms, and a vulnerability-management process appropriate to the patch cadence the plant can actually sustain. Successful outcomes look like a plant data-historian feeding an enterprise data platform without an IT-driven incident propagating to OT, a cyber-physical risk register that the plant manager and the CISO both accept, and an audit posture that holds up under customer or insurer scrutiny. An engagement typically runs ten to sixteen weeks, embedded with plant operations, controls engineering, the enterprise security team, and the data-platform engineering function consuming OT telemetry.
AI and IT strategy for industrial manufacturers and industrial-products firms.
OT/IT convergence, supply-chain visibility, IATF 16949 program oversight, and the practical economics of factory-floor AI.
What we see in Manufacturing and Industrial Products.
Industrial manufacturers face a structural tension: the OT systems on the factory floor were designed for stability over a twenty-year horizon, and the IT systems above them are now being asked to ingest, model, and act on that data in real time. The Purdue Reference Model gave the industry a clean architectural separation between Levels 0-3 and Level 4 enterprise IT, but the modern AI and supply-chain-visibility use cases require disciplined data flow across that boundary, with IEC 62443 controls intact.
The expensive failures we see are not predictive-maintenance models that didn’t train, they’re supply-chain control towers built without supplier-data contracts, Enterprise Resource Planning (ERP) migrations that misjudged the integration test load, and quality programs where the IATF 16949 audit trail can’t survive a customer-driven supplier audit. The buyer doesn’t need another data lake. The buyer needs the engineering and program discipline to land a defensible data platform that the plant operations team can actually use.
On AI, the practical question is which factory-floor use cases survive the operational economics. Vision QC at line speed, predictive maintenance with edge inference, anomaly detection on process telemetry: these are real, but they require an honest read on the labelling, drift, and intervention cost before the program scales beyond a single line.
Where we plug in for Manufacturing and Industrial Products.
Regulatory and compliance landscape.
Industrial manufacturers are subject to overlapping quality, safety, environmental, and increasingly disclosure-related frameworks. We design deliverables to align with the frameworks that govern the work.
-
IATF 16949 →
Automotive quality management system standard. Required by most OEMs of their tier-1 and tier-2 suppliers.
-
AS9100 →
Aerospace and defense quality management system standard, built on ISO 9001 with sector-specific additions.
-
IEC 62443 →
Industrial automation and control systems cybersecurity standard. Zones, conduits, and security levels for OT environments.
-
NIST CSF for OT →
NIST Cybersecurity Framework, including the OT-specific guidance in NIST SP 800-82 (Guide to Operational Technology Security).
-
EU REACH →
Registration, Evaluation, Authorisation and Restriction of Chemicals. Chemical safety obligations for substances placed on the EU market.
-
EU CSRD →
Corporate Sustainability Reporting Directive. Mandatory sustainability disclosure for large EU-operating firms, aligned with European Sustainability Reporting Standards.
-
US SEC Climate Disclosure Rules →
Securities and Exchange Commission (SEC) rules on climate-related disclosures. Scope 1 and Scope 2 emissions reporting and material climate-risk discussion in registrant filings.
-
ISSB IFRS S1 / S2 →
International Sustainability Standards Board general and climate-specific disclosure standards. Increasingly the global reference frame for investor-facing sustainability reporting.
Prior engagements.
MES consolidation across discrete plants in EMEA and APAC
The Manufacturing client was running four MES instances across EMEA and APAC plants, each with its own definition of OEE, scrap, and first-pass yield, and the COO could not benchmark plants against each other without a finance-led adjustment cycle that took weeks.
Barrier consolidated the four instances onto a single AVEVA industrial software (Schneider Electric subsidiary) (AVEVA) MES template aligned to International Society of Automation standard 95 for enterprise-control system integration (ISA-95) levels two and three, rebuilt the OEE definition with the operations excellence team, and instrumented the data feed into the corporate Power BI layer that the divisional COO already used. We rolled out plant-by-plant against a stage-gate model and wrote the model line documentation that became the template for downstream plants.
Comparable plant-level reporting reached the COO inside the program window. Fourteen-month program, six-plant scope, embedded with the global manufacturing engineering function.
OT/IT segmentation under IEC 62443 for chemicals plant
The Manufacturing client had open high-severity findings from a prior IEC 62443-3-3 assessment of its specialty chemicals site, with DCS and SIS networks flat-routed against engineering workstations and an external auditor citing inadequate zone and conduit definitions. The plant manager could not take a sustained outage to rework the DCS.
Barrier designed Purdue-aligned segmentation around the DCS and SIS networks, deployed Claroty for passive monitoring across the conduits, and led the change-window planning so the segmentation rollout never required a hot-cut on a process unit. We wrote the SR-2 through SR-7 control narrative the auditor would re-test against and rehearsed the response with the plant's incident commander.
The highest-severity findings closed at the follow-up assessment. Nine-month engagement, jointly owned with the plant automation team.
Predictive maintenance pilot on haul truck fleet
The Mining client was losing meaningful tonnes per quarter to unplanned haul-truck downtime, with vibration data, engine telemetry, and oil-analysis sitting in three disconnected systems and the planners working from a manual escalation log. The chief mine engineer wanted a pilot that would not require ripping out OEM telematics.
Barrier stood up a vibration and engine-telemetry pipeline into a Databricks workspace, built the model serving layer that fed the maintenance planners' existing ERP queue, and wrote the alarm-handling runbook with the mine's reliability team. We sequenced the pilot on the priority haul-truck fleet and ran it for two PM cycles before extending.
Unplanned downtime on the priority fleet came down materially over six months. Six-month pilot, three-person Barrier team, joint with the mine's reliability engineering group.
Ready to scope a Manufacturing and Industrial Products engagement?
A 20-minute brief on the problem and we’ll come back with what we’d actually do.

