Introduction
The ISO 15926-2 extensions is the place where we introduce entity types that were "forgotten" in Part 2, such as Person, Organization, InformationObject, etc. We need such entity types:
- to enable to declare these individuals (with limitations, see diagram below)
- to enable us to further specialize templates for Individuals. For example the template SkillOfAPerson
This topic also gives information about the way the entity types from the ISO 15926-2 Upper Ontology relate to instances thereof in the ISO 15926-4 Reference Data Library, and how to the added subtypes of Part 2 PossibleIndividual.
Also visit the topic that applies this for a pump P-101
Also visit the topic that applies this for a pump P-101
Model Overview
Before you dive in the details here is an overview of the conceptual model of ISO 15926-2, without the 124 Relationships and ClassOfRelationship's.
High-level overview of ISO 15926-2 data model
Please be aware of the fact that the Relationships and their classes are not, and cannot be, for drafting reasons, shown.Discussion
The added entity types are, provisionally, stored in the Part 12 lci: ontology (lci = life cycle integration). In the future, at the time that Part 2 requires an update, these will be incorporated in Part 2.
These new entity types fit in the Part 2 model as shown in the graph below.
These new entity types fit in the Part 2 model as shown in the graph below.
Extensions to ISO 15926-2 data model
The proposed changes are:
- Additions - are marked with red-dotted boxes.
- Deprecation - ExpressLogical - because there is no such datatype in XML Schema Part 2.
- Name change - 'Literal' (instead of ClassOfExpressInformationRepresentation) in the yellow-dotted box.
Details
For details about these proposed changes see the topic Part 2 Cheat Sheet and the Proposal for updating ISO 15926-2.