jOWL MANUAL

Manual on the jOWL browser

May, 30 2010

Version 4.00 of the finance ontology is published.

Until financing of the ontology development is provided, no more updates are planned.

More logging info

General construct

The description of the ontology keeps you informed about the work in progress.

By the list of classes one can select straight the class he wishes to query.

The taxonomy is the main method used for browsing the ontology by clicking the terms to expand.

The description of the class may contain terms which you want explained. Double-click the term and the free dictionary will open on the term in a separate window.

The query input field allows you to query the ontology getting results on the input wherever it occurs in the ontology.

The taxonomy and dictionary aspects of the ontology are obtained by proceeding as indicated.

Any term, not a hyperlink, you whish explained can be double-clicked and the free dictionary will open on the term in a separate window.

In stead of browsing the ontology you might be interested in searching for a specific term.

One search possibility is the search on the class names.

This search is also initiated on the first page as shown here

Any term, not a hyperlink, you whish explained can be double-clicked and the free dictionary will open on the term in a separate window.

Tab 2: Properties

There are 2 major kinds of properties used: the object properties (in other models called relations) and the data-type properties.

To consult the instances of a class for substitution of the classes in the property, the class tab should be used as explained above.

Any term, not a hyperlink, you whish explained can be double-clicked and the free dictionary will open on the term in a separate window.

TAB 3: individuals or instances

When a description of an individual can not be captured in the "Classes" tab by hovering over its name, the alternative is to select it in the list of the individuals.

Any term, not a hyperlink, you whish explained can be double-clicked and the free dictionary will open on the term in a separate window.

Queries in SPARQL-DL

SPARQL-DL (Descriptive logics) is a human language variant of SPARQL. The language is developed specially to query ontologies. SPARQL is the SQL for ontologies.

The link on the tab is referring to pages with plenty of examples and links from there to other sites with more information still.

A few examples query strings follow here-under.

SPARQL-DL queries: try them out yourself.

I want to know	String
Which class an individual (G-Guaranteed) belongs ?	Type(G-Guaranteed, ?class)
Alle individuals of the class CFITypeOfInterest ?	Type(?x, CFITypeOfInterest)
All subclasses of ValuePartition ?	SubClassOf(?sc, ValuePartition)

Most common problems

Please have the patience to wait until the ontology loads.
As the ontology grows, the load time shall increase unfortunately.
You might switch at any point in time to the other browsers we make available on this site.
You need to use a compliant browser: The presentation is visible with Internet Explorer 7, Firefox (2 &) 3, Safari (Webkit-Browsers) and further versions

Credits: The browser is made by David Decraene with the tools you can find on his fantastic website http://www.ontologyonline.org/