IT/OT convergence is the integration of information technology, the systems that handle business data, with operational technology, the systems that monitor and control physical equipment, so data and practices flow between them.
Operational technology covers PLCs, DCS, SCADA, safety systems and the networks that connect them. For decades these ran on proprietary protocols, often isolated from the corporate network. IT covers ERP, email, data centers and cloud. Convergence connects the two: production data flows to business systems and analytics, and IT tools, networking and platforms move onto the plant floor.
The two sides have different priorities. IT traditionally ranks confidentiality first. OT ranks availability and safety first, because an unplanned stop can damage equipment, spoil product or hurt people. OT assets stay in service for decades, patches may require a shutdown and vendor approval, and many industrial protocols have no authentication. Practices that are routine in IT, such as automatic updates or active network scanning, can disrupt a control system.
Convergence is as much organizational as technical. Someone must own the network between the plant and the enterprise, usually a segmented zone often called an industrial DMZ. Most AI projects in manufacturing depend on convergence, because models need plant data in IT-side platforms. Every new connection also widens the attack surface, which makes OT cybersecurity part of any convergence plan.
IT vs OT
| IT | OT | |
|---|---|---|
| What it handles | Business data | Monitoring and control of physical equipment |
| Typical systems | ERP, email, data centers, cloud | PLCs, DCS, SCADA, safety systems and their networks |
| First priority | Confidentiality | Availability and safety |
| Updates | Automatic updates are routine | Patches may require a shutdown and vendor approval |
Questions about IT/OT convergence
What is the difference between IT and OT?
IT handles business data: ERP, email, data centers and cloud. OT monitors and controls physical equipment: PLCs, DCS, SCADA, safety systems and the networks that connect them. IT traditionally ranks confidentiality first, while OT ranks availability and safety first.
Why can IT practices cause problems on the plant floor?
Because they can disrupt a control system. Automatic updates and active network scanning are routine in IT, but OT assets stay in service for decades and a patch may require a shutdown and vendor approval.
IT/OT convergence in real plants
- AGC and Cognite: AGC selected Cognite's industrial AI and data platform as the manufacturing data integration platform for its Chemicals Company; after a proof of concept, a phased rollout to major domestic sites is scheduled.
- Kansai Electric Power and Cognite: Kansai Electric Power adopted Cognite as the integrated data platform for its hydro power business under its Next Generation Hydro Reborn Project.
- Plains and HighByte: Plains deployed HighByte Intelligence Hub as a central integration layer for Electronic Flow Measurement meter data, from AVEVA PI System to Azure Event Hubs.
- Tosoh and Cognite: Tosoh implemented Cognite Data Fusion at its Nanyo and Yokkaichi chemical complexes; the project started at both sites in June 2025 and implementation was completed in December 2025.
- ConocoPhillips and HighByte: ConocoPhillips uses HighByte Intelligence Hub to standardize OT data from SCADA and several historians across business units and deliver it to Snowflake in a common data model.
Vendors linked to IT/OT convergence
Cognite (5) · HighByte (5) · Sight Machine (1)
Related terms
OT cybersecurity
OT cybersecurity is the protection of operational technology, the control systems and networks that run physical processes, against cyber threats, with safety, availability and reliable operation as the first priorities.
ISA-95
ISA-95 is an international standard series, also published as IEC 62264, for integrating enterprise business systems with manufacturing control systems.
Unified namespace (UNS)
A unified namespace (UNS) is an architecture pattern in which plant and business systems publish their current data to one shared, hierarchically organized hub, usually an MQTT broker, instead of exchanging it through point-to-point integrations.
Industrial IoT (IIoT)
Industrial IoT (IIoT) is the network of sensors, instruments, and machines in industrial settings that are connected to computers and software to collect and use operational data.
Industry 4.0
Industry 4.0 is the umbrella term for connecting and computerizing manufacturing through cyber-physical systems, networked sensors, and data analysis.