The Open Definition
The Open Definition is a document published by Open Knowledge International (OKI) (previously the Open Knowledge Foundation) to define openness in relation to data and content. It specifies what licences for such material may and may not stipulate, in order to be considered open licences. The definition itself was derived from the Open Source Definition for software.
Open means anyone can freely access, use, modify, and share for any purpose (subject, at most, to requirements that preserve provenance and openness).
The latest form of the document, published in November 2015, is version 2.1. The use of language in the document is conformant with RFC 2119.
The document is available under a Creative Commons Attribution 4.0 International License, which itself meets the Open Definition.
- "The Open Definition Defining Open in Open Data, Open Content and Open Knowledge". Open Knowledge International. Retrieved 22 January 2017.
- "Open Definition 2.1". Open Knowledge International. Retrieved 22 January 2017.
- "History - Open Definition". Open Knowledge International. Retrieved 22 January 2017.