Re: [ontolog-forum] Questions about specific ontologies

[Adrian Walker <adriandwalker@xxxxxxxxx>]

Hi Charles,

You may be interested in modeling your ontology using the Executable English (EE) system online at the site below.

An advantage of the approach is that the ontology is also the application.

Here are a couple of relevant examples of  EE "source code":

  www.reengineeringllc.com/demo_agents/Access.agent

  www.reengineeringllc.com/demo_agents/FundManagement1.agent

The online tutorials show how to adapt the above to your peoject.

                               -- Adrian

Internet Business Logic
A Wiki and SOA Endpoint for Executable Open Vocabulary English over SQL and RDF
Online at www.reengineeringllc.com    
Shared use is free, and there are no advertisements

Adrian Walker
Reengineering
Phone: USA 860 830 2085

On Sun, Jun 13, 2010 at 1:35 AM, Charles F. Munat <charles.munat@xxxxxxxxx> wrote:

Thanks, John.

My goals with this ontology are as much to learn about ontologies as
anything else. I won't know what use they might be with any certainly
until I understand them better.

I'm a web application developer. Many of my applications require
somewhat complex authorization controls. I'm particularly interested in
attribute-based or some combination of attribute-based and role-based
access controls. I read an interesting article about using XACML and OWL
to create an access control system that's capable of making some
inferences. Sounds like a match made in heaven to me.

Starting more simply, the first thing I'm trying to do is to model an
organizational hierarchy that is essentially a DAG. In simplified form,
it is a hierarchy of administrative units:

State -> Region -> County -> District -> Town -> School

But a particular unit can have two or more parents and can skip levels.
In other words, School A might be adminstered by both Town A <- District
A <- County A <- Region A <- State A and, say, Special District 1 <-
Region A <- State A, if that makes any sense.

So a School (or higher unit) could report directly to a County or
Region, for example, but a Region could never report to a County or
School. The relationships always go in one direction.

I am wondering how one would represent this sort of relationship using,
say, OWL and Protege.

Down the road, I am hoping to build an extensive "expert system" of
sorts around a drink recipe database. Recipes would be entered in a
procedural way using a DSL (add ice to a mixing glass, add 1.5 oz dry
gin, .5 oz dry vermouth, 2 dashes of orange bitters, stir, strain into
chilled cocktail glass, garnish with a lemon twist). I envision the
ingredients as a large graph with numerous types of relationships
(whole/part: orange/orange peel; general/specific: bourbon/Maker's Mark;
etc.). I'd like the system to be able to recommend substitutions and
estimate what effect they would have.  But that's a ways down the road...

Any suggestions, ideas, comments, links, etc. very welcome. Am I way off
base here?

Chas.

On 06/12/2010 10:34 PM, John F. Sowa wrote:
> On 6/12/2010 3:04 PM, Charles F. Munat wrote:
>
>> I have questions about how to create an ontology with certain
>> restrictions. I am wondering if this is an appropriate forum
>> for such questions...
>>
> This is probably as good a forum as any.  The first questions
> I'd ask are what kinds of "restrictions" you had in mind and why.
>
> What kind of work are you doing?  Why do you want an ontology?
> What difference would an ontology make in what you have been doing?
> How do you think it might help?  What might you do with an ontology
> that you aren't able to do with your current approach?
>
> In short:  What are you trying to do?  And why?
>
> John Sowa
>
>
>
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