latest update: 2020-07-19 (NOTE:   or  means added or revised in the last 30 days)

author: Hans Teijgeler 


"We can't solve problems by using the same kind of thinking we used when we created them." -Albert Einstein

download paper (may take some time)

Latest update of topic
ISO 15926 Portal - An overview with references to topics below (and others)  28 Nov. 2019
Management Summary

Management Summary about ISO 15926 - A summary in 644 words, highlighting what it is about 2 March 2018
Data Model
ISO 15926-2 Foundation Model - an ISO-standard, highly generic, data model with 201 entity types that is the Top Level Ontology of ISO 15926

6 Feb. 2015

ISO 15926-2 Foundation Model in FOL - a First-Order Logic rendering of the Part 2 model  28 Nov. 2019

ISO 15926-2 model in Turtle format - where the Foundation Model is in Express format, here is the result of a mapping to Turtle

7 Nov. 2016

ISO 15926-2 model extensions - some entity types, like Person, Organization, are not listed in ISO 15926-2 and are added here.

4 Nov. 2019

Possible Worlds - how modal logic is avoided

26 April 2018

Temporal Parts - a cornerstone of ISO 15926 for life-cycle information integration  

5 Nov. 2019

About Cardinalities - The difference in cardinality definition is explained

26 Jan. 2019

Life cycle of a Class- where a Class is eternal, its applicability is not always that; in order to find a way to describe the "life cycle" of a (Part 2) Class a class-of-temporal-part of that Class is used. 

8 June 2018

Reference Data

Reference Data - overview - ISO 15926 is modeled in a data-driven fashion, using templates that have "Roles", and where those Roles make reference to the URI of objects that have been declared as instances of the Part 2 entity types. The Reference Data Library, based on ISO 15926-4, stores concepts that are widely used in the user community.  

6 Nov. 2019

Reference Ontologies - a methodology to define, for each Class, the relationships with other Classes that are commonly accepted in the Process Industries.  

9 Nov. 2019

How does pump P-101 fit in? - An example of how the proverbial pump P-101 fits in ISO 15926-2, -4. and -7. 

9 Nov. 2019

How do Instruments & Controls fit in? - Instrumentation has many functions; this topic shows how this is handled in the RDL 

19 July 2020

Object Models and the RDL - An example of how to build object models in the RDL (this has not been done so far)

7 Jan. 2019

CFIHOS Data Model and Reference Data - An initial, and still incomplete, mapping to ISO 15926
27 March 2020

Templates - an introduction - the concept of templates, as defined in ISO 15926-7 and -8, is discussed briefly.  

9 Nov. 2019

Templates as ontologies - templates are small ontologies, based on the Upper Ontology defined in ISO 15926-2 - from concept to implementation    9 Nov. 2019

Symbols for graphs - the symbols, as used in the Template Specifications, are explained here.

8 April 2013

Redefinition of the Template Model - a proposal for the replacement of the flawed template model in ISO 15926-8. 

8 Feb. 2020

Methodology for Template Selection - a decision tree for an SME (Subject Matter Expert) to select the applicable ISO 15926 template.

26 Mar. 2015

ISO 15926-7 Proto-templates - Proto-templates provide a layer of abstraction immediately above the relational entity types of ISO 15926-2 by hiding the reified relationships of ISO 15926-2.

14 Nov. 2013

TIPs - Templates of Information Pattern- a TIP helps in directly mapping a data field in a data base table, spreadsheet, intelligent diagram, etc to an ISO 15926-8 exchange file 

22 Dec. 2018

Templates for Activity - activity models are used to describe processes and also human activities.

26 Dec. 2018

Templates for Document - a set of templates that cover the many variables related to modeling documents and information 

14 Nov. 2019


Process Design - the "cradle" of the plant life cycle.

9 July 2017

The role of functional objects - the rationale for having them as intended and not as pseudo-physical-objects.

9 July 2017

Functional vs Physical Object - how a physical object gets its function defined.

31 Mar. 2019

Document Types and DocumentDefinition - with a DocumentDefinition the required contents type can be defined for one or more Document Types (=ClassOfInformationObject)

1 Apr. 2019

Functional Resource Model - discussed are the Activity Breakdown Structure (ABS) and the related Function Breakdown Structure (FBS), and the Work Breakdown Structure (WBS) and the related Organization Breakdown Structure (OBS).

9 July 2017

Plant Life-cycle Model - a "back bone" model of all typical placeholders of plant life-cycle information.

1 August 2020

Operational modes and Catalog options - in plant design we sometimes have to model "operational modes", whereas in product catalogs we often see "options", both are identical.

1 June 2018

Equations and Variables - detailed explanation about how an equation for a Unit Operation can be modeled and how data can be linked to variables in that equation.

11 Nov. 2018

2D and 3D symbols on documents - a way to represent a document, that contains 2D or 3D symbols, with templates.

25 Nov. 2014


Mapping - Introduction - A scenario for mapping, using TIPs.

8 May 2018

Mapping Wizard - A description of the wizard that is being built

6 Feb. 2019

Mapping of a P&ID - Piping & Instrument Diagrams are the core documents of any plant; the mapping of an example is discussed.

26 June 2018

Mapping of the API 610 data sheet for centrifual pump - from the official API data sheet to ISO 15926-8 code, thereby using TIPs

8 May 2018

Mapping of a functional design of a control loop - functional design of a control loop is based on instances of FunctionalObject that are indirectly connected by signals.

22 April 2018

Mapping of a Line List - using a number of templates a complete mapping of a Line List has been detailed. 

1 June 2019

Mapping of structured documents - a document model is completely detailed.

12 Sept. 2017

Mixing data and documents - this topic gives, at a conceptual level, a solution for the integration of data, that are being mapped, and documents.

25 Oct. 2016

Mapping provenance data - this topic shows how meta information can be mapped to object properties in lifted templates or in templates about lowered templates.

15 Oct. 2014

Mapping CFIHOS data  9 July 2020
Background Information

ISO 15926 Architecture - the OWL/RDF implementation of ISO 15926 consists of interrelated, distributed modules, where each module has its own rate of change and related versioning.

5 May 2018

Part 8 compliance - this topic shows that the implementation of ISO 15926-8, as set forth in the Topics on this website, is in line with same Part 8.

25 Oct. 2016

Inverse properties for inheritance and performance - the advantages of adding InverseProperties are being discussed.

8 May 2018

Acronyms for Part 2 entity types - although not much in use anymore, here they are for the tenacious few.

19 May 2015


Declaring an object - It is mandatory to declare all things, except Literals, in this part of ISO 15926. This is telling how. 

5 Nov. 2019

Data Integration - a way to achieve life-cycle data integration 

5 Nov. 2019

Effectivity & Deprecation - shows how the beginning and ending of the validity of information is implemented.

8 May 2018

Querying with SPARQL - in this topic a number of queries will be demonstrated.

20 Apr. 2014

Information Sets - sets of templates represent information for a certain purpose, including the information content of a document is some revision.

21 Dec. 2018

A scenario for Lifecycle Information Integration - the aim of ISO 15926 is "Integration, sharing, exchange, and hand-over of distributed Plant Lifecycle Information."; this topic gives a possible scenario.

21 Dec. 2018


Validating RDF data with SHACL  - A first attempt to apply the new W3C Recommendation "Shapes Constraint Language (SHACL)", dated 20 July 2017,  to ISO 15926-7/8 data.  

21 Dec. 2018