Overview - ISO/TS 15926-7:2011 (Template methodology)
ISO/TS 15926-7:2011 is part of the ISO 15926 family for life‑cycle data integration in process plants (including oil & gas). It specifies a template methodology for describing and exchanging life‑cycle information. Templates are defined on top of the ISO 15926-2 data model and use a mathematical, first‑order logic formulation for ontology integration. Because the methodology is logic‑based, it is independent of particular programming or serialization languages, enabling portable, semantic data exchange across distributed systems.
Keywords: ISO/TS 15926-7, template methodology, ISO 15926-2, life-cycle data integration, oil and gas, ontology integration, first-order logic, distributed systems.
Key topics and technical requirements
- Template definitions: formal templates for representing individuals and classes, including signatures and specialization rules.
- Proto‑templates and entityTriple: foundational template building blocks used to construct domain templates.
- Logical formalism: ISO 15926-2 expressed in first‑order logic; templates include axioms and rewrite/expansion semantics.
- Template expansion & semantics: rules for expanding templates into assertions; normative semantics and properties (decidability, consistency).
- Constraints and cardinality: mechanisms for expressing existential/universal constraints, at‑most/precisely‑one and other cardinalities for relations and properties.
- Verification and consistency: methods for checking template compliance with ISO 15926-2 and for verifying consistency (e.g., via description/coherent logic translations).
- Reference data as templates: representing template sets as registered reference data for reuse across projects.
- Informative annexes: examples, recursive vs non‑recursive expansion, and formal checks to guide implementation.
Applications and practical value
ISO/TS 15926-7 is designed to support:
- Semantic data exchange between engineering, procurement, construction (EPC) systems, asset management, and operations systems.
- Ontology mapping and integration when multiple departmental or vendor models must interoperate.
- Model‑driven data integration for process plants, enabling reuse of reference templates (e.g., equipment, measurements, properties).
- Automated consistency checking of integrated life‑cycle information before handover or migration.
Who uses it:
- Data architects and integration engineers, implementing semantic interchange for process plants.
- System integrators and software vendors building ISO 15926‑based data hubs, registries or middleware.
- EPC contractors and asset operators aiming to consolidate lifecycle information across heterogeneous systems.
Related standards
- ISO 15926‑2 (data model) - foundational ontology and data definitions used by Part 7.
- ISO/TS 15926‑4 (reference data) - referenced for required reference items and taxonomy.
Adopting ISO/TS 15926-7 helps organizations achieve language‑independent, verifiable semantic integration of distributed lifecycle data in process and oil & gas facilities.