This page describes installation methods for a "consumer" who just wants to use the QUDT ontology in their own application, but not to change it in any way. There is a companion page here that describes how a developer can install the QUDT in ways that support contributing new Units, QuantityKinds, or even community extensions, via GitHub Pull Requests.

Go the the Releases page and choose any version. The latest version not marked "Snapshot" is the most recent stable release. If you want the absolute latest, choose the Snapshot release, but there may be some experimental, not-yet-stable changes. Once you have downloaded either the zip or tar.gz file. After expanding the file, the easiest things to do is to simply load one of:

• QUDT-all-in-one-SHACL.ttl
• QUDT-all-in-one-OWL.ttl

depending on whether you are using OWL or SHACL as your modeling approach.

For the Linked Data community, you can just load one of the above graphs as a resolvable URI. This approach works well with Protege using the "Open from URL" menu item. Load one of:

• https://qudt.org/shacl/qudt-all
• https://qudt.org/qudt-all

In the same way, you can refer to an individual Unit (or other instance), such as https://qudt.org/vocab/unit/A for the Ampere. We use content negotiation, so if you enter that in a browser, you get an HTML page. The same URI from an application will give you a Turtle snippet. (You can look at the snippet in your browser by entering https://qudt.org/vocab/unit/A.ttl)