Re: Interoperable Interpretation and Evaluation of ODRL Policies

Dear Leonard,

Thank you for your remark. The ODRL Compliance Report Model is an RDF 
vocabulary serialized in Turtle syntax [1]. It is worth noting that ODRL 
W3C Recommendation itself is also expressed in RDF; however, the 
examples provided in the Information Model are serialized in JSON-LD 
[2], which is simply an alternative RDF serialization format.

There are several tools available for converting Turtle to JSON-LD, 
which might help make the reports more accessible if you are used to the 
latter:
- https://www.easyrdf.org/converter
- https://converter.zazuko.com/

Kind regards,
Wout Slabbinck

[1] https://www.w3.org/TR/turtle/
[2] https://www.w3.org/TR/json-ld11/

On 27/03/2025 15:31, Leonard Rosenthol wrote:
> Wout – thanks for posting.
>
> One thing that I don’t see documented anywhere is the actual grammar for those ODRL Compliance Reports.  It looks like a custom syntax, requiring custom parsing logic, rather than a well known serialization syntax such as JSON or YAML.
>
> Am I missing something??
>
> Leonard
>
> From: Wout Slabbinck <Wout.Slabbinck@Ugent.be>
> Date: Thursday, March 27, 2025 at 10:24 AM
> To: public-odrl@w3.org <public-odrl@w3.org>
> Subject: Interoperable Interpretation and Evaluation of ODRL Policies
> EXTERNAL: Use caution when clicking on links or opening attachments.
>
>
> Dear ODRL Community,
>
> Julian Rojas, Beatriz Esteves, Pieter Colpaert, Ruben Verborgh and I are
> pleased to present our paper, 'Interoperable Interpretation and
> Evaluation of ODRL Policies', that has been accepted for the ESWC25
> Resource Track [1, 2].
>
> The paper is influenced by and hopefully an addition to the ODRL Formal
> Semantics specification [3].
> In it, we introduce three components to improve policy engine
> interoperability when using the Open Digital Rights Language (ODRL) [4]:
> - The Compliance Report Model: Denotes the result of an ODRL evaluation
> in an interoperable manner [5]
> - ODRL Evaluator: An open implementation of an ODRL Evaluator that
> evaluates ODRL policies by generating Compliance Reports [6]
> - The ODRL Test Suite: A software component that executes, validates and
> measures the compliance of an ODRL evaluator over a set of test cases [7]
>
> To further enhance the exploration and usability of ODRL evaluations, we
> have developed FORCE [8], an interactive web application powered by the
> ODRL Evaluator. This application allows users to modify key inputs and
> gain deeper insights through comprehensive explanations of compliance
> report results. Moreover, FORCE is seamlessly integrated with a diverse
> set of examples dynamically sourced from the test suite, making the
> experimentation with ODRL evaluations both intuitive and accessible.
>
> We hope our contribution sparks some discussions in the monthly ODRL
> meetings or ODRL Formal Semantic meetings.
> We also welcome any feedback on the repositories to help continue
> improving our work.
>
> Kind regards,
>
> Wout Slabbinck
> Researcher
> Internet Technology & Data Science Lab
> Ghent University - imec
> Ghent - Belgium
>
> [1] preprint of "Interoperable Interpretation and Evaluation of ODRL
> Policies":
> https://raw.githubusercontent.com/woutslabbinck/papers/main/2025/Interoperable-Interpretation-and-Evaluation-of-ODRL-Policies.pdf<https://raw.githubusercontent.com/woutslabbinck/papers/main/2025/Interoperable-Interpretation-and-Evaluation-of-ODRL-Policies.pdf>
> [2] ESWC25 Conference: https://2025.eswc-conferences.org/<https://2025.eswc-conferences.org/>
> [3] ODRL Formal Semantics specification:
> https://w3c.github.io/odrl/formal-semantics/<https://w3c.github.io/odrl/formal-semantics/>
> [4] The Open Digital Rights Language (ODRL):
> https://www.w3.org/TR/odrl-model/<https://www.w3.org/TR/odrl-model/>
> [5] ODRL Compliance Report Model: https://w3id.org/force/compliance-report<https://w3id.org/force/compliance-report>
> [6] ODRL Evaluator: https://github.com/SolidLabResearch/ODRL-Evaluator<https://github.com/SolidLabResearch/ODRL-Evaluator>
> [7] ODRL Test Suite: https://w3id.org/force/test-suite<https://w3id.org/force/test-suite>
> [8] Framework for ODRL Rule Compliance through Evaluation (FORCE):
> https://woutslabbinck.github.io/ODRL-Evaluator-Demo/<https://woutslabbinck.github.io/ODRL-Evaluator-Demo/>

Received on Tuesday, 1 April 2025 12:43:40 UTC