OpreX™ Control of Work
Next Generation Digital Control of Work Software
OpreX™ Control of Work delivers the next generation of digital safety, built on over 30 years of experience in hazardous operations.
It combines Risk Assessment, Permit to Work, Isolations, and Shift Operations Management into one smart, intuitive integrated safe system of work (ISSoW) that strengthens safety, improves consistency, and ensures audit-ready compliance.
The system embeds millions of hours of real-world CoW expertise, guiding frontline teams through safer, more reliable decisions.
With straightforward, intuitive modules, OpreX Control of Work delivers a consistent, standardized safety process for your whole workforce.
Learn more at www.yokogawa-rap.com.

-
Permit to Work
Permit to Work: Your documented safety method for controlled work, ensuring front-line protection of your workforce and contractors
-
Risk Assessment
The fully knowledge-based system can be used to carry out risk assessments in any language you choose to ensure worker and contractor safety.
-
Isolations
Build step-by-step isolation procedures for every type of work with the ability to template for use with similar equipment and store away for future use
-
Safety Override Risk Management (SORM)
Safety Override Risk Management enables the management of interlocks and overrides, critical equipment and barrier management
-
Operations Management
OpreX™ Operations Management digitizes and standardises plant operations, improving safety, communication, and efficiency. It delivers real-time visibility, smoother shift handovers, and a single source of truth to reduce risk and prevent unplanned downtime.
-
Field Assistant
OpreX™ Field Assistant brings digital permits, risk assessments, and field tasks straight to the point of work. With real-time data, offline capability, and a simple mobile interface, it keeps field teams connected and supports safer, faster, more reliable plant operations.
Details
Challenges
Paper-based processes and limited legacy software safe systems of work, across maintenance, shift handover, incident management, and change management restrict real-time visibility, communication, and collaboration.
1. Key limitations in capability
- Risk assessment quality and consistency
- In field communication and safety
- Opportunities for efficiency improvements
- Opportunities for continuous learning
- Language flexibility (often only one language supported)
2. Variable and inconsistent risk assessments
Inconsistencies increase operational risk and make trend analysis difficult.
3. Reliance on spreadsheets introduces operational risk
Manual data entry, version control issues, and lack of real-time visibility impact accuracy and decision-making.
4. Inefficient shift handover systems
Gaps in communication and loss of operational context increase the risk of human error.
5. Poor connectivity with critical systems
Inability to link with Maintenance Management Systems and emerging technologies limits digital integration.
6. Lack of future ready digital worker safety preparedness
Organizations struggle to meet modern expectations for connected worker safety, digitisation, and mobile readiness.
Our Solution
- Yokogawa’s OpreX™ Control of Work Solution is far more than a digital version of a paper form or spreadsheet, it is an intelligent, knowledge-driven platform designed to proactively manage risk, improve safety performance, and standardize safe systems of work across the entire organization.
- OpreX Control of Work brings together four core functions into one integrated system: Risk Assessment | Permit to Work | Isolation | Shift Management
This provides a unified, end-to-end workflow for managing work safely, consistently, and efficiently. - Built with layers of safety for all industries, all scales, and all levels of operational risk, the solution uses simple, clear, intuitive modules that guide workers, supervisors, and contractors through safe and compliant work processes supporting a complete and connected platform for worker safety.
- The system embeds decades of proven industry knowledge, strengthened by millions of hours of real-world Control of Work experience across high-hazard environments. This expertise is built into the workflows, templates, risk prompts, isolation logic, and decision support tools ensuring best practice performance from day one.
- Interoperable today, future-ready for tomorrow
OpreX Control of Work seamlessly connects with your existing legacy systems while also being fully prepared to integrate with emerging connected worker technologies, ensuring long term scalability and digital readiness.

Key Benefits
- Assure complete Control of Work audit compliance and drive Continuous Safety Improvement.
- Significantly improve Risk Assessment and Mitigation across all types of work.
- Strengthen Safety Culture through standardized, best practice processes.
- Enhance productivity across operations, enabling measurable cost savings.
- Interface seamlessly with key systems, including Maintenance Management Systems (MMS), Mobile solutions for connected workers, and Operations Management (OM) as part of the unified OpreX Control of Work offering.
- Configurable work processes that allow integration with legacy systems while supporting future digital expansion.
- Enable remote work and safe distancing practices, supporting distributed and flexible operations.
Enabling Technology

-
Optimize pharma & biopharma worker safety
Elevate pharma/biopharma safety with OpreX™ control of work - real-time risk insights, robust compliance, and minimal time-on-tools impact.
-
Advanced worker safety for LNG facilities
Strengthen LNG safety with OpreX™ Control of Work - streamlined permits, real-time tracking, and reliable hazard management.
-
Mitigate risk for port worker safety
Optimize port operations with OpreX™ Control of Work - digital mapping, real-time coordination, and safer workflows in dynamic environments.
-
Industry-leading control of work safety for offshore
Boost offshore safety with OpreX™ control of work - robust risk assessment, isolation oversight, and compliance in harsh environments.
News
Looking for more information on our people, technology and solutions?
Contact Us