Licensing is the legal mechanism by which the holder of a right, such as a copyright, patent, trademark, or regulatory permission, grants another party permission to use it under specified terms. A licence defines the scope, duration, territory, and conditions of permitted use without transferring ownership of the underlying asset. In software and data, licensing governs how code, models, and datasets may be copied, modified, redistributed, and commercialised.
Overview
- Licensing converts an abstract legal right into a set of enforceable, negotiable permissions. It lets rights holders monetise or share their work while retaining ownership, and it gives users legal certainty about what they may do. In the software and AI ecosystem, the choice of licence shapes whether and how an artefact can be adopted, combined, and commercialised.
Key aspects
- Permissive licences allow broad reuse with minimal obligations, typically requiring only attribution.
- Copyleft licences require derivative works to be distributed under the same terms, preserving openness downstream.
- Proprietary and commercial licences restrict use to negotiated terms, often with fees and usage limits.
- Data and model licences address training, redistribution, and acceptable-use conditions specific to datasets and AI weights.
Applications
- Governing open-source and open-data distribution.
- Structuring commercial software and content sales.
- Defining acceptable use and redistribution terms for AI models and training datasets.