latest update: 2021-01-11 (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


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Latest update of topic
ISO 15926 Portal - An overview with references to topics below (and others) 11 Jan 2021
Management Summary

Management Summary about ISO 15926 - A summary in 644 words, highlighting what it is about 2 March 2018
Data and Information - How data are being grouped to represent information
25 Dec. 2020
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 

17 Oct 2020

About Cardinalities - The difference in cardinality definition is explained

11 Jan 2021

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.

11 Jan 2021

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 Mar 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.

23 Aug 2020

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.

10 Oct 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  10 Jan 2021
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