Risk Assessment within OpreX™ Control of Work provides a structured, knowledge‑driven approach to identifying hazards, assessing risk, and applying the correct controls before any work begins. As the core engine of safe‑work planning, RA‑P4 ensures that every job is evaluated consistently, transparently, and in line with site standards.
Built for hazardous, permit‑driven environments, the Risk Assessment Process guides users through each step of the activity, helping them identify all hazards that have the potential to cause harm and select the necessary control measures to mitigate risk. This knowledge‑based approach ensures that controls are applied accurately and proportionately, reducing variability and strengthening operational discipline.
RA‑P4 supports risk assessment at each step of the work activity, ensuring hazards are recognised where they actually occur — not just at the job level. This step‑by‑step structure improves clarity, supports better decision‑making, and provides a fully auditable record of how risks were identified and controlled.
Together, these capabilities form a central part of Yokogawa’s Safe System of Work, helping organisations reduce human error, improve consistency, and maintain stronger control of operational risk across the full safe‑work lifecycle.
The system’s Cortex distils 30+ years of operational knowledge from millions of hours of risk assessment and permit data, powering the new OpreX Control of Work platform.
Every job is broken into clear, actionable steps, each with its own targeted risk assessment. This ensures hazards are identified early, controls are applied consistently, and all work aligns with Health and Safety Executive standards.
Built for Modern Safe Work
OpreX Control of Work brings together proven safety intelligence and modern digital execution—helping organisations work safer, faster, and with total confidence.
We took over legacy operations belonging to a number of former companies. Our challenge was to establish a consistent control of work procedure which was comprehensive and at the same time capable of accomodating the differing requirements of the individual plants. RAP’s inherent ability to deliver these requirements via its flexible icon system was perfect for us.
Operations Manager
Chemicals Complex
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.
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.
The solution can be configured to use plot plans/maps hosted by WMS (Web Map Service) servers.
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.