On 2021-11-26 10:35 am, Rob Atkinson wrote:
A related perspective
following a test-driven design philosophy, ontology development
requires instance data for testing, and best practices for
documentation require illustrative examples.
Thus while editing example instances in a separate graph we want to be
able to attach these to the Classes. Which means some editing of
statements about the classes and properties, and navigation from
classes and properties to related examples _in the data graph_ is
desirable - but AFAIK not supported.
Just use file mode (EDG Studio) for test cases etc. There are no
instance/class limits there.
(maybe this can best be done with inverse paths from the instances to
the classes - but we want to be able to navigate the classes to find
the instances.)
Yet I wonder why would you ever want test data in production files? It
is common practice for test files and sample data to be in separate files.
Holger
On Fri, 26 Nov 2021 at 09:54, Holger Knublauch
<[email protected]> wrote:
On 2021-11-25 7:26 pm, bostoM wrote:
Thanks,
Nevertheless, I have just three kinds of asset collections in
my version :
- Taxonomies, Ontologies and Crosswalks.
For the second option I haven't this option also in my topBraid.
But why we can not edit instances by default please ?
There are various reasons for our recommendation that
- Ontologies should only contain classes, properties and shapes
- Instances should go into all other graphs
One technical reason is that changes to ontologies may cause
internal overhead, e.g. rebuilding of GraphQL schema and other
optimized data structures. In a typical project, changes to
ontologies are much less frequent than changes to instances, so
it's usually a good assumption that the ontology will be stable so
that these other data structures can be kept stable too.
But also from a design perspective it is quite natural to keep
ontologies/schemas and instances separate, because schemas are
typically reused across multiple instance graphs. Exceptions are
instances that represent enumerated instances, e.g. the colors of
traffic lights, or the 12 months of a calendar.
Mixing schema and instances may be convenient for quick
prototyping but keeping them separate is in our experience a good
long term investment.
Holger
Best,
Le jeudi 25 novembre 2021 à 02:57:03 UTC+1, Irene Polikoff a écrit :
We recommend putting instances into a graph different from an
ontology e.g., into a taxonomy, reference dataset, data graph
and many other asset collection types available in EDG.
If you create instances in an ontology, by default, only
label and comment will be editable. This can be changed on
the Manage tab by checking the box shown below:
On Nov 24, 2021, at 7:16 PM, Holger Knublauch
<[email protected]> wrote:
Sorry I don't think I understand your exact scenario. Could
you elaborate a bit? Are you using Ontologies or some
instance asset collection such as Data Graphs/Taxonomies?
That impacts which properties are editable. And on your
first question, what do you mean they are not displayed?
Some concrete example snippets would help.
Thanks,
Holger
On 2021-11-25 3:05 am, bostoM wrote:
Hi folks,
I have two questions :
1. I defined Node shapes with some properties shapes. When
I try to use this NodeShape in an external ontologies
(instances) I have my constraints applied correctly on
my owl:Class but not displayed.
2. I create instances, now, the properties are displayed
but "read-only" and I can't edit the values of these
properties.
Thanks for your help and explanation.
Best,
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