Interactive Explorer
The architecture of O‑PAS
The O‑PAS standard does not define a particular system — it defines how components participate in one. Select any element below to see what it is and the part of the standard that defines it.
The O‑PAS Standard is published by The Open Group and developed by the Open Process Automation Forum (OPAF). Component descriptions below are for orientation — consult the standard for authoritative detail.
Deployment View
Where these components sit in a real system
The parts model above describes what each element is. This shows where it runs — on-premise, off-site, in the enterprise, or on the plant floor — and distinguishes components that are natively O‑PAS conformant from legacy equipment bridged in through an OCI adapter. Select any component to see what it does.
Illustration by CSI showing the O‑PAS layered architecture concept for orientation. Not a reproduction of any figure in The Open Group’s O‑PAS Standard — consult the standard itself for the normative architecture diagram.
Go deeper than the diagram.
The full architecture — and how CSI implements it as an OPA system integrator — is the subject of CSI’s reference work and annual report. Translating this architecture into a facility-specific plan starts with Open Process Automation strategy. Use the O-PAS Architecture and Component Roles Guide → Use the Interface Definition and Boundary Management Guide →