Licences[edit]
Definition
are issued by authors and copyright holders to give expanded usage rights to data, creative works, and code. For computer software and scripts, numerous established licences are available. Open licences refer to licences that support the Open Source Definition68. Some open licences include conditions for sharing derivative works (e.g. GPL, CC BY-SA). Permissive open licences (e.g. MIT, BSD-2-clause, CC BY, CC0) set minimal requirements for reuse and licensing of derivative material. Licence compatibility issues may affect the choice of a licence.
Exact match