1. ISO Part 2 - Data Model Part 4 - Reference Data Part 7 - Templates Part 7 - Object Information Models

2. The layers of ISO 15926

3. Part 2 - Data Model The ISO 15926-2 data model is a generic model
with 201 entity types in one hierarchy,
with at the top:

4. PossibleIndividual A PossibleIndividual can or could exist in
our space-time.
Types of PossibleIndividual are:
PhysicalObject - e.g. my laptop, John Doe, radio wave, spaceship Enterprise, my heirs in the year 2100
Activity - e.g. this meeting, this project
Event - e.g. the fact you logged in
PointInTime T13:45Z
PeriodInTime - e.g. next summer season

5. Relationship Any instance of Thing ONLY has an ID
Any information we want to put on record
is expressed in terms of instances of
Relationship (between PossibleIndividual's)
or ClassOfRelationship (between Class'es)

6. Class A Class is an understanding of the nature of
things, that divides things into things that are
members of the class and things that are not,
according to one or more criteria
A Class may have zero to many subclasses and
subsubclasses, organized in a hierarchy called
a taxonomy
Members of a Class have relationships with
members of other Classes. This information
(knowledge) is laid down in an ontology

7. Part 4 - Taxonomy and Ontology [1]

8. Part 4 - Taxonomy and Ontology [2]

9. Part 7 - Templates [1]
Consider the following model :

10. Part 7 - Templates [2] Needless to say that this is rather verbose
We call this a "longhand" template, as opposed
to a counterpart "shorthand" template refers
to the variables only, and to its companion LT

11. Part 7 - Object Information Models [1]
The OIM for a Class = the Ontology for a Class
An OIM is a set of specialized Templates that
describe the kinds of lifetime information that is
possible for the members of a Class, e.g.

12. Part 7 - Object Information Models [2]
Below we show how generic Template ST3401 is
specialized by specializing three of its external
references:

13. Use of OIMs The OIMs are used for:
mapping from a User System's proprietary format to the Part 7 standard format
the definition of user-defined Document Types
(a brief excursion to DTs was made, but that will
be discussed in more detail next time)
This will be discussed next time
See you then! :-)