I don’t mind the process for creating reifiable properties in the ontology or 
for my business user entering the data – I like that part.

I was meaning that the UI for a business user - when entering instance data for 
a new relationship - is slightly cumbersome. Take for example entering a data 
value rule in the glossary. If the data value rule does not already exist, a 
user has to use the plus sign to add it. In the new pop-up they only get the 
Label and ID fields initially (unless other properties required). After 
creating the shell of the data value rule I have to save the glossary term and 
then click back into the data value rule to enter any supporting data. It feels 
like extra steps when if it is a reifiable value I simply have to click on the 
little plus sign next to the relationship value and begin adding the additional 
data. Does that make sense?

GaBriella

From: [email protected] <[email protected]> On 
Behalf Of David Price
Sent: Tuesday, January 30, 2024 6:54 AM
To: [email protected]
Subject: Re: [EXTERNAL] [topbraid-users] Reifiable by

On creating reifications …

Perhaps a UI function added to the Modify button for a property to “Add 
reification properties” a bit like “Declare inverse property” would be a start?
It could create the node shape pointing to the property and then users just add 
whatever properties they want to reifiy to the shape.

I guess could alternatively prompt user for a property name and a datatype and 
create the first refied property in the same interaction. They additional 
properties could be added to that same shape.

Cheers,
David


On 30 Jan 2024, at 06:23, Holger Knublauch 
<[email protected]<mailto:[email protected]>> wrote:

Hi GaBriella,

on the UI perspective, I could not agree more. Using intermediate objects is 
indeed not well supported right now.

For example,

               ex:Person1
                              ex:memberOf [
                              a ex:Membership ;
                              ex:organization ex:Organization1 ;
                              ex:startDate "2005-04-12"^^xsd:date ;
                              ex:endDate "2009-11-08"^^xsd:date ;
                              ] .

currently requires creating that Membership instance, then going into it to 
fill in the dates.

And querying often requires using path expressions such as

               ?person ex:memberOf/ex:organization ?org .

The situation is complicated as there are variations of this, e.g.

               ex:Person1Membership1
                              a ex:Membership ;
                              ex:member ex:Person1 ;
                              ex:organization ex:Organization1 ;
               ex:startDate "2005-04-12"^^xsd:date ;
               ex:endDate "2009-11-08"^^xsd:date .

I have some initial thoughts about better supporting editing blank nodes, but 
none of that is fully fleshed out yet.

For these relationships, maybe a start would be to introduce some kind of dash 
namespace extensions to
annotate the "intermediate" objects, so that a UI can pick up a suitable widget 
such as a tabular viewer and editor.

I wonder if anyone has input or similar requirements.

Is my assumption right that in many of these relationships, there is at most a 
handful of properties (such as startDate
and endDate), allowing tabular input and rendering?

Holger



On 29 Jan 2024, at 11:20 pm, 'Branson, GaBriella C' via TopBraid Suite Users 
<[email protected]<mailto:[email protected]>> wrote:

Thank you. I will consider creating relationship objects instead. From a UI 
perspective (for the use case I was trying to solve for) I feel it is more 
straightforward to enter reifiable data over creating a new relationship object 
--> saving the form --> and then clicking into the new object to add the 
associated data.

Thanks again. I always appreciate learning best practices and recommendations 
to improve my modeling.

GaBriella Branson
Interagency Wildland Fire - Knowledge Manager
<image001.png>

From: [email protected]<mailto:[email protected]> 
<[email protected]<mailto:[email protected]>> On 
Behalf Of Holger Knublauch
Sent: Monday, January 29, 2024 12:39 PM
To: 'Bohms, H.M. (Michel)' via TopBraid Suite Users 
<[email protected]<mailto:[email protected]>>
Subject: [EXTERNAL] Re: [topbraid-users] Reifiable by




 This email has been received from outside of DOI - Use caution before clicking 
on links, opening attachments, or responding.


Yes, only one level is supported.

The general alternative to using reification is to introduce relationship 
objects, lifting the reification info into the main ontology. Some people argue 
that reification should not be used when it is really the representation of a 
relationship. Instead, it should only be used for cases like provenance of 
triples and other true metadata.

Holger





On 29 Jan 2024, at 8:24 pm, 'GaBriella Branson' via TopBraid Suite Users 
<[email protected]<mailto:[email protected]>> wrote:

Hello,

Is there a limit to how "deep" reifiable statements can go?

I have a class with a property that has a node shape it is reifiable by. Within 
the node shape I would like to add another layer making one of my properties 
reifiable by yet another node shape. It does not appear that the shape within 
the shape is working.

First "layer" on the class: (this one works)
<performed by.JPG>
And this is the layer (a node shape on a node shape) that is not working:
<performed by shape.JPG>

Thanks in advance for any clarification you may have to explain what I should 
be expecting.

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