ISO 15926: Unlocking Lifecycle Data Interoperability for Process Industries

In today’s asset-intensive sectors, from oil and gas to chemical processing and power generation, the ability to move reliable information seamlessly across the plant lifecycle is not a luxury—it is a strategic necessity. ISO 15926 stands as a foundational framework designed to harmonise data across projects, operations and maintenance, enabling organisations to manage, share and reuse information with confidence. This article delves into ISO 15926, often written as ISO 15926, explaining what it is, how it works, where it is applied, and how organisations can adopt it to unlock meaningful gains in data interoperability and lifecycle efficiency.

What is ISO 15926? An overview of the standard

The ISO 15926 standard, sometimes referred to by its shorthand in industry discourse as the lifecycle information model for process plants, provides a comprehensive information modelling framework for industrial automation and integration. Its primary aim is to establish a common, machine-readable approach to describing plant data so that information can be exchanged, interpreted and reused by different software systems, vendors and organisations across the lifecycle—from early design through construction, commissioning, operation and eventual decommissioning.

At its heart, ISO 15926 offers a structured approach to modelling information about physical assets, processes, plant equipment, and the relationships between them. It emphasises semantic interoperability—ensuring that the meaning of data is preserved when it is shared between disparate systems. The standard supports recurring terms such as information models, templates, views and reference data models, all designed to support scalable data exchange in complex, multi-stakeholder environments. In practice, this means organisations can describe “what is” about a plant in a consistent way, and then share that description with others without bespoke, point-to-point integrations.

Key concepts behind ISO 15926

Open Information Modelling and the Open Information Model (OIM)

A core concept within ISO 15926 is the idea of an open information model. The Open Information Model (OIM) provides the semantic backbone for how information is structured and linked. It defines generic constructs that can be specialized to describe specific asset classes, processes and data types. The OIM is intended to be extensible, enabling industries to evolve their information models without breaking compatibility with existing data exchanges. For organisations, the OIM offers a way to future-proof data architectures while maintaining consistency with long-standing industry practices.

Reference Information Model (RIM) and information templates

ISO 15926 employs a Reference Information Model that acts as the backbone for information exchange. The RIM captures broad, reusable concepts such as “Asset”, “Function”, “Measurement”, “Unit” and “Relationship”. From the RIM, concrete information models can be derived to cover specific domains like piping, instrumentation, or electrical systems. To accelerate practical deployment, ISO 15926 also supports templates—predefined structures that enable rapid authoring of information for common asset types or lifecycle events. Templates help organisations maintain consistency while reducing the time and effort required to create new data models.

Views and interoperable data exchange

A vital enabler of interoperability in ISO 15926 is the notion of views. Views are curated, policy-driven lenses through which information is shared. They specify which data elements are visible, how they are represented, and how they relate to one another in a given exchange scenario. By employing views, organisations can exchange only the data that is relevant to a particular collaboration—sanitising sensitive information when necessary and aligning with governance practices. This approach is particularly beneficial when working with multiple vendors, contractors and asset operators, each with their own information systems and data standards.

Governance, conformance and lifecycle alignment

ISO 15926 is not merely a data model; it is a governance framework for lifecycle information. It supports alignment of data across stages of a plant’s life—from design to operation—ensuring continuity and traceability. Conformance levels help organisations assess how well their data exchanges adhere to the standard, and governance practices ensure that data quality, stewardship and change management are integrated into the workflow. Such governance is essential for achieving trusted data across diverse teams and software ecosystems.

Why ISO 15926 matters for the process industry

Adopting ISO 15926 can deliver tangible benefits that address some of the most persistent challenges in process industries. Interoperability, data quality, and lifecycle information integrity are recurring themes when large-scale projects involve multiple engineering disciplines, vendors, and asset management teams. ISO 15926 helps to:

• Reduce data silos: By providing a unified modelling approach, ISO 15926 makes it easier to share information between design, procurement, construction, commissioning and operations teams.
• Improve data quality: Standardised templates, RIM concepts and governance controls contribute to higher data consistency and reduced duplication.
• Enhance asset lifecycle visibility: With a coherent information model, organisations can track asset history, maintenance regimes and performance data across decades.
• Lower integration costs: Rather than bespoke integrations, ISO 15926 supports interoperable data exchanges that can be reused across projects and partners.
• Support compliant reporting: Consistent terminology and data definitions support regulatory reporting and assurance activities.

In practice, many organisations in the oil and gas, chemical, and energy sectors have used ISO 15926 to facilitate multi-company collaboration, reduce rework due to misaligned data, and enable more accurate plant lifecycle simulations. The standard is equally applicable to brownfield and greenfield projects, where existing information must be integrated with new design data to capture a complete picture of asset information.

How ISO 15926 is used in the real world

Lifecycle information management across design, procurement and construction

During the concept, FEED (Front End Engineering Design) and detailed design phases, ISO 15926 models help define common data structures for equipment, materials, and process information. By using templates aligned with RIM concepts, project teams can share design data with suppliers and contractors in a predictable format. When procurement and construction begin, the same information models help ensure that delivered data aligns with what was specified, reducing the risk of mismatch and change orders.

Asset information management and operation

Post-commissioning, ISO 15926 continues to support asset information management. Operators can rely on a single, coherent information model to capture instrumentation data, commissioning records, maintenance histories, and configuration management details. This continuity is essential for regulatory compliance, reliability engineering, and long-term asset performance monitoring.

Interoperability with other data ecosystems

In many organisations, ISO 15926 data exchanges coexist with enterprise resource planning (ERP), computerized maintenance management systems (CMMS), and laboratory information management systems (LIMS). ISO 15926 does not aim to replace these systems; rather, it provides a robust interface layer that enables reliable data transfer and interpretation across solutions. This approach reduces integration complexity and supports better decision-making through richer, more accessible data.

Implementation strategies for ISO 15926

Start with governance and a clear scope

Before embarking on technical work, establish a governance framework for ISO 15926 adoption. Define roles, responsibilities, data ownership, and decision rights. Clarify which plant assets, facilities, or process areas are within scope, and determine the exchange partners (internal and external) that will participate in the initial pilots. A well-defined scope prevents scope creep and sets the stage for measurable benefits.

Assess current data models and map to the standard

Conduct an inventory of existing data models, dictionaries and templates. Identify overlapping terms, inconsistencies and data quality gaps. Through careful mapping to ISO 15926 concepts—such as assets, processes, measurements and relationships—organisations can establish a bridge from legacy data to the open information model. This mapping process is foundational to achieving semantic interoperability later on.

Develop templates and views for practical exchange

Leverage information templates to accelerate the creation and exchange of standard data sets. Define views to determine what data is shared in particular scenarios. For example, a design-to-procurement exchange might use a different view than an operations-to-maintenance handover. Templates and views help maintain consistency while allowing flexibility to accommodate project-specific needs.

Pilot projects to demonstrate value

Designate small but representative pilots to demonstrate ISO 15926 benefits. Choose projects with diverse stakeholders, such as a refinery retrofit or a new chemical processing unit, to test end-to-end data exchange and governance. Use the pilot to refine templates, validate data quality, and quantify improvements in data availability and lifecycle insight.

Plan for scale and continuous improvement

Transitioning from a pilot to enterprise-wide adoption requires a plan for scaling. This includes the expansion of data domains, additional partner organisations, and integration with more corporate systems. Embed a cycle of continuous improvement for data models, templates and views, and align with your organisation’s broader information governance strategy.

Industry use cases and lessons learned

Oil and gas: field development and asset integrity

In offshore and onshore oil and gas projects, ISO 15926 helps coordinate information across engineering disciplines, supplier data, and asset records. A key advantage is the ability to maintain consistent data about equipment, process piping, valves and instrumentation across the project lifecycle. Operators gain enhanced capability to trace design changes, maintenance history and performance metrics, enabling more informed decisions about integrity management and decommissioning planning.

Chemical processing: reliability and compliance

Chemical plants benefit from ISO 15926 by unifying the representation of process data, safety instrumentation, and laboratory results. Standardising the exchange of information between process engineers, process safety teams and regulatory bodies reduces ambiguity and supports accurate compliance reporting and risk assessment. The open modelling approach also helps with audits and incident investigations by retaining a coherent information trail across systems.

Power and utilities: lifecycle data for plant optimisation

In power generation and utility-scale facilities, ISO 15926 supports integration of design data with operations data, enabling asset managers to link maintenance actions to equipment performance. This linkage supports predictive maintenance strategies and reliability-centred management, thereby improving plant uptime and reducing unplanned outages.

Benefits, challenges and considerations for organisations

Benefits at a glance

• Improved data interoperability across vendors, systems and life-cycle stages.
• Higher data quality and reduced duplication through standardised models and governance.
• Better visibility into asset history, enabling more informed decision-making.
• Lower integration and data translation costs due to reusable templates and views.
• Enhanced regulatory compliance and auditability through consistent terminology and data lineage.

Common challenges to anticipate

• Complexity: ISO 15926 is comprehensive and requires careful planning, governance and skilled modelling.
• Change management: organisations must invest in training and culture to adopt new data practices.
• Initial cost: pilot projects require investment in data mapping, template development and governance processes.
• Vendor alignment: different suppliers may have varying data capabilities; achieving alignment takes time and negotiation.

Practical tips for a successful ISO 15926 journey

• Executive sponsorship: secure leadership commitment to data governance and lifecycle information management.
• Clear data ownership: assign data stewards for critical domains such as equipment, piping, instrumentation and maintenance data.
• Phased approach: start with limited domains and gradually broaden scope as capabilities mature.
• Documentation: maintain living documentation of templates, views and mapping rules for transparency and onboarding.
• Measurement: define KPIs for data quality, interoperability and delivery times to monitor progress.

The future of ISO 15926: evolving the information framework

As digitalisation accelerates in heavy industries, ISO 15926 continues to evolve. The standard remains compatible with emerging data practices such as digital twins, digital threads and advanced analytics, while preserving the core objective of enabling reliable, semantically meaningful data exchange across lifecycles. Ongoing collaboration within the ISO 15926 community and with industry consortia helps keep the standard relevant to new asset classes and evolving regulatory requirements. In practice, this means organisations that invest in ISO 15926 today are better positioned to adopt future enhancements, integrate with complementary standards, and maintain a sustainable approach to data governance across decades of operation.

Common misperceptions and how ISO 15926 addresses them

“It’s only for oil and gas.”

While widely adopted in oil and gas, ISO 15926 is applicable to any asset-intensive sector that requires lifecycle information management. The concepts of reference information models, templates and views are domain-agnostic and can be adapted to chemical plants, power facilities, water treatment plants and beyond.

“It’s too complex to implement.”

Implementation can be staged. By focusing on governance, templates and a few critical domains initially, organisations can realise early benefits. Complexity is managed through robust change control, clear scoping and iterative adoption, rather than a single, all-encompassing rollout.

“We need to replace our current systems.”

ISO 15926 is not a replacement for existing software; it is an interoperability framework that enables data exchange. It complements ERP, CMMS and engineering tools, reducing the need for custom point-to-point integrations and enhancing data continuity across systems.

How to embark on ISO 15926: a pragmatic roadmap

1. Define the purpose: articulate business goals for lifecycle data interoperability and the intended governance model.
2. Map the landscape: inventory current data models, standards, templates and exchange mechanisms across the organisation.
3. Design the information architecture: establish the Reference Information Model alignment, templates for common asset classes, and views for typical exchange scenarios.
4. Pilot and validate: run targeted pilots to demonstrate value, refine templates and quantify improvements in data quality and cycle times.
5. Scale with governance: expand to additional domains, partners and systems while embedding data stewardship and change management.

Putting ISO 15926 into practice: a concise checklist

• Establish a cross-disciplinary governance group with representation from engineering, operations, IT and data management.
• Develop a domain-specific set of templates aligned to the RIM and the Open Information Model.
• Define clear views for different exchange scenarios (design-to-procurement, design-to-operations, etc.).
• Inventory and cleanse data sources before migration or exchange to ensure data quality at source.
• Implement metrics to track improvements in data availability, accuracy and time to decision.

Conclusion: iso 15926 as a strategic enabler of plant intelligence

ISO 15926 represents more than a technical standard; it is a strategic approach to how organisations design, share and sustain knowledge about their plants and processes. By embracing ISO 15926, companies can break down information silos, create a trusted information backbone across the asset lifecycle, and unlock better decision-making through more reliable data. Whether you refer to it as ISO 15926 in formal documentation, or discuss its principles in more flexible terms as iso 15926, the objective remains the same: to enable open, interoperable, and governed data exchanges that support safer, more efficient and more resilient industrial operations. For teams embarking on digital transformation, ISO 15926 offers a clear, scalable path to unify information, reduce rework and realise the downstream benefits of integrated asset management.

In short, the iso 15926 standard provides a robust framework for the modern, data-driven plant. With careful planning, governance and phased execution, organisations can realise enduring value by turning disparate data into a coherent, trusted resource that supports lifecycle insights, compliance, and operational excellence. The journey may be complex, but the payoff—stronger collaboration, improved data quality and superior asset performance—often justifies the investment.