
ISO 15926 is an international standard for the integration of data for oil and gas production facilities, including process plants, offshore platforms, and pipelines. It provides a common semantic framework — an ontology — for representing information about physical assets and their properties in a way that is system-independent and machine-readable.
The standard addresses one of the most persistent challenges in asset-intensive industries: engineering data created in one system (design, procurement, construction, operations) is rarely directly usable in another without expensive manual translation or mapping. ISO 15926 provides the shared language that makes reliable data exchange possible.
ISO 15926 is structured in multiple parts, of which the most relevant for asset data management are:
The ISO 15926 reference data library (RDL) is a structured, hierarchical catalogue of classes, properties, and relationships used to describe equipment, materials, documents, and activities in plant facilities. It serves as the controlled vocabulary that different systems use to mean the same thing when exchanging data.
The RDL is hosted at posccaesar.org (POSC Caesar Association) and is publicly accessible. CFIHOS builds on the ISO 15926 RDL, mapping its equipment classes and technical attributes to ISO 15926 concepts.
In practice, ISO 15926 is more relevant for software vendors and platform architects; CFIHOS is more relevant for owner-operators and EPCs defining project data requirements.
Implementing ISO 15926 alignment in asset data management delivers:
Is ISO 15926 the same as CFIHOS?
No. ISO 15926 is a broader data integration standard; CFIHOS is a handover specification standard that uses ISO 15926 as its semantic foundation. See the comparison above.
Who uses ISO 15926?
Primarily software vendors, major owner-operators with sophisticated data management programmes, and EPCs working on large capital projects where system interoperability is a defined requirement. CFIHOS has made ISO 15926 alignment more practically accessible by defining specific, project-ready data requirements built on the ISO 15926 framework.