SEMIC style guide to create reusable vocabularies

You are more than welcome to help expand and mature this project.

When contributing to this repository, please first discuss the change you wish to make via issue, email, or any other method with the owners of this repository before making a change.

Please note that we adhere to a Code of Conduct, please follow it in all your interactions with the project.

The documents, such as reports and specifications are licenced under a CC BY 4.0 licence.

The source code and other scripts are licenced under EUPL v1.2 licence.

Wondering how well your own semantic data specifications adhere to the rules listed in the Style Guide? The Interoperability Test Bed offers the SEMIC Style Guide Validator as a service. The SEMIC Style Guide Validator allows the user to upload a model in either UML (XMI), SHACL or OWL format and validate it against the rules expressed in the Style Guide. The Style Guide Validator is available in the following formats:

• UML Style Guide Validator (Web Service)
• OWL/SHACL Style Guide Validator (Web Service)
• REST API Style Guide Validator
• SOAP API Style Guide Validator

Documentation on the Style Guide validator can be found on Joinup or on the respective pages on the ITB.

SEMIC has published a 2026 report exploring how the Style Guide can support today’s Semantic Web ecosystem. Have a look on GitHub and help shape the next steps.

This section offers an overview of the webinars and events related to the SEMIC Style Guide.

The table below shows webinars and events related to latest version of the SEMIC Style Guide:

The table below shows webinars and events related to previous versions of the SEMIC Style Guide: