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Digital Work Execution and Operations Safety

OpreX™ Control of Work is Yokogawa’s integrated Control of Work solution for managing risk controlled work and operational safety in hazardous and highly regulated environments.
Built on over 30 years of Control of Work experience, it brings together permitting, risk control, mobile execution, and operations management to support a consistent, auditable integrated Control of Work solution for managing risk controlled work across the full lifecycle of work.

What is OpreX™ Control of Work?

OpreX™ Control of Work goes beyond electronically replicating paper permits. It embeds risk awareness and verification directly into how work is planned, authorised, executed, and monitored—integrating permitting with operations management, shift handover, incident management, AI-powered RAMS, and mobile field execution through Field Assistant to support a consistent, auditable Safe System of Work.

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Key principles include:

  • Risk identification, assessment, and verification embedded throughout the full lifecycle of work planning, authorisation, execution, and monitoring
  • Integrated Control of Work and Operations Management to maintain continuity of safety critical information across shifts and operational boundaries
  • Structured incident, near miss, and observation management to support investigation, corrective action, and organisational learning
  • Dynamic, AI powered RAMS aligned to defined work scope, operating conditions, and management of change requirements
  • Mobile field execution and verification through Field Assistant, ensuring accurate, traceable, and auditable records at the point of work

Digital transformation of controlled work

OpreX™ Control of Work supports advanced digital deployment while integrating with existing site systems and workflows.

  • Cloud or on premise deployment
  • Integration with CMMS and enterprise systems
  • Desktop, tablet, and mobile ready user interfaces
  • Configurable workflows aligned to local governance
  • On demand dashboards, reports, and print outputs
  • Operates alongside legacy and historical systems

Control of Work Modules

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Risk Assessment

Robust Risk Assessment identifying all hazards present in the workplace that have the potential to cause harm enabling the necessary control measures to mitigate the risk.

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Isolations

A comprehensive yet simple to use Isolation module, allowing users to ensure that all energy sources associated with any equipment to be worked on, have been completely removed.

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Permit to Work

Digital Permit to Work is your front-line method of keeping people safe. Providing risk identification, mitigation, and communication key components of safe Control of Work.

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Field Assistant

Mobile execution for safer, more efficient field operations Field Assistant is the mobile enablement layer within OpreX™ Control of Work, extending digital Control of Work processes directly to the point of work.

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SORM

OpreX Control of Work's SORM - Safety Override Risk Management module offers visibility of current, future and historical permitting workload and highlights “overload risk” and provides additional dashboarding and reporting functionality specific to these in order to ensure operational risk management for process safety.

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Reporting

Reporting in OpreX Control of Work allows the user to create and run reports using current and historical data derived from all Job, Task, Isolation and Personnel activity in the system. For example, a report could be created showing all permits completed in an area over a given time period.

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Turnaround

The speed at which permits can be issued during turnarounds can have a large effect upon overall performance, with any delays in issuing impacting upon the time taken to get the job done. RA-P4’s upfront planning capability, its flexible rules and barcode controls greatly enhance this process giving potential for large savings.

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GIS

The solution can be configured to use plot plans/maps hosted by WMS (Web Map Service) servers.

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E-Learning

The Competence Classroom eLearning portal offers training to workers in an organisation for all modules, Permit to Work, Isolations, and Administration. The portal will enable basic users to receive training in basic tasks.

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Utilities and Infrastructure

The Utilities and Infrastructure module has been developed to cater for businesses with widely distributed asset bases and where a high degree of communication between consenting and affected parties is crucial.

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Management of Change (eMoC)

Electronic Management of Change (eMoC) within OpreX™ Control of Work provides a structured, auditable approach to managing temporary and permanent changes that can impact safety, operations, and compliance.

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Operator Driven Reliability (ODR)

Operator Driven Reliability (ODR) enables frontline operators to carry out routine inspections and basic maintenance tasks to identify early signs of equipment degradation and prevent failures.

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P&ID

P&ID’s are now an indispensable source of information for many software solutions. Being able to communicate a vast amount of engineering information about a site is now essential for a wide variety of requirements.

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Shift Management

Shift Management within OpreX™ Control of Work provides a structured, auditable approach to capturing, managing, and handing over critical operational information between shifts.

Smart RAMS

By guiding users through hazards, controls, and safe work methods in a clear, step‑by‑step approach, AI driven SMART RAMS help ensure consistency, compliance, and shared understanding across all parties involved in the work.

Incident Management

Incident Management within OpreX™ Control of Work provides a centralised, auditable approach to capturing and managing incidents, accidents, and near misses across operational sites. Embedded directly within the Control of Work environment, it supports consistent reporting, clear ownership, and full traceability from initial report through to close out.

Field Standard Operating Procedures (FSOP)

Field Standard Operating Procedures (FSOP) extend OpreX™ Control of Work by enabling standard operating procedures to be executed, verified, and recorded digitally in the field.

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