Evaluation and comparison semantics for ODRL
Evaluation and comparison semantics for ODRL
We consider the problem of evaluating, and comparing computational policies in the Open Digital Rights Language (ODRL), which has become the de facto standard for governing the access and usage of digital resources. Although preliminary progress has been made on the formal specification of the language's features, a comprehensive formal semantics of ODRL is still missing. In this paper, we provide a simple and intuitive formal semantics for ODRL that is based on query answering. Our semantics refines previous formalisations, and is aligned with the latest published specification of the language (2.2). Building on our evaluation semantics, and motivated by data sharing scenarios, we also define and study the problem of comparing two policies, detecting equivalent, more restrictive or more permissive policies.
Salas, Jaime Osvaldo
ecf80f84-a5c6-4f40-a1cc-4ef6047c8563
Pareti, Paolo
c4337eaa-f206-4639-afd2-3bcbfe734cdb
Yumusak, Semih
5a45f53d-7a3c-4e3d-93b1-bc83f7096f37
Gheisari, Soulmaz
ec5925da-f424-4f49-8b72-d4d045ee7ba6
Ibáñez, Luis-Daniel
65a2e20b-74a9-427d-8c4c-2330285153ed
Konstantinidis, George
f174fb99-8434-4485-a7e4-bee0fef39b42
15 October 2025
Salas, Jaime Osvaldo
ecf80f84-a5c6-4f40-a1cc-4ef6047c8563
Pareti, Paolo
c4337eaa-f206-4639-afd2-3bcbfe734cdb
Yumusak, Semih
5a45f53d-7a3c-4e3d-93b1-bc83f7096f37
Gheisari, Soulmaz
ec5925da-f424-4f49-8b72-d4d045ee7ba6
Ibáñez, Luis-Daniel
65a2e20b-74a9-427d-8c4c-2330285153ed
Konstantinidis, George
f174fb99-8434-4485-a7e4-bee0fef39b42
Salas, Jaime Osvaldo, Pareti, Paolo, Yumusak, Semih, Gheisari, Soulmaz, Ibáñez, Luis-Daniel and Konstantinidis, George
(2025)
Evaluation and comparison semantics for ODRL.
14th International Joint Conference on Knowledge Graphs (IJCKG 2025), , Heraklion, Greece.
15 - 17 Oct 2025.
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Conference or Workshop Item
(Paper)
Abstract
We consider the problem of evaluating, and comparing computational policies in the Open Digital Rights Language (ODRL), which has become the de facto standard for governing the access and usage of digital resources. Although preliminary progress has been made on the formal specification of the language's features, a comprehensive formal semantics of ODRL is still missing. In this paper, we provide a simple and intuitive formal semantics for ODRL that is based on query answering. Our semantics refines previous formalisations, and is aligned with the latest published specification of the language (2.2). Building on our evaluation semantics, and motivated by data sharing scenarios, we also define and study the problem of comparing two policies, detecting equivalent, more restrictive or more permissive policies.
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Published date: 15 October 2025
Venue - Dates:
14th International Joint Conference on Knowledge Graphs (IJCKG 2025), , Heraklion, Greece, 2025-10-15 - 2025-10-17
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Local EPrints ID: 507024
URI: http://eprints.soton.ac.uk/id/eprint/507024
PURE UUID: 6018ee8e-ae6f-4dc7-8373-058ffbe7dc4f
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Date deposited: 25 Nov 2025 17:54
Last modified: 26 Nov 2025 03:09
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