Today Open Knowledge and the Open Definition Advisory Council announced the release of version 2.0 of the Open Definition. The Definition “sets out principles that define openness in relation to data and content,” and is the baseline from which various public licenses are measured. Any content released under an Open Definition-conformant license means that anyone can “freely access, use, modify, and share that content, for any purpose, subject, at most, to requirements that preserve provenance and openness.” The CC BY and CC BY-SA 4.0 licenses are conformant with the Open Definition, as are all previous versions of these licenses (1.0 – 3.0, including jurisdiction ports). The CC0 Public Domain Dedication is also aligned with the Open Definition.

The Open Definition is an important standard that communicates the fundamental legal conditions that make content and data open. One of the most notable updates to version 2.0 is that it separates and clarifies the requirements under which an individual work will be considered open from the conditions under which a license will be considered conformant with the Definition.

Public sector bodies, GLAM institutions, and open data initiatives around the world are looking for recommendation and advice on the best licenses for their policies and projects. It’s helpful to be able to point policymakers and data publishers to a neutral, community-supported definition with a list of approved licenses for sharing content and data (and of course, we think that CC BY, CC BY-SA, and CC0 are some of the best, especially for publicly funded materials). And while we still see that some governments and other institutions are attempting to create their own custom licenses, hopefully the Open Definition 2.0 will help guide these groups into understanding of the benefits to using an existing OD-compliant license. The more that content and data providers use one of these licenses, the more they’ll add to a huge pool of legally reusable and interoperable content for anyone to use and repurpose.

To the extent that new licenses continue to be developed, the Open Definition Advisory Council has been honing a process to assist in evaluating whether licenses meet the Open Definition. Version 2.0 continues to urge potential license stewards to think carefully before attempting to develop their own license, and requires that they understand the common conditions and restrictions that should (or should not) be contained in a new license in order to promote interoperability with existing licenses.

Open Definition version 2.0 was collaboratively and transparently developed with input from experts involved in open access, open culture, open data, open education, open government, open source and wiki communities. Congratulations to Open Knowledge and the Open Definition Advisory Council on this important improvement.

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The guidelines put a lot of emphasis on the legal aspects of PSI. As part of this the Commission highlights the fact that not all documents need to be licensed, especially those that are in the Public Domain:

A simple notice (e.g. the Creative Commons public domain mark) clearly indicating legal status is specifically recommended for documents in the public domain (e.g. where IPR protection has expired or in jurisdictions where official documents are exempt from copyright protection by law).

In addition to this important clarification the Commission also provides clear recommendations for the use of open licenses:

Several licences that comply with the principles of ‘openness’ described by the Open Knowledge Foundation to promote unrestricted re-use of online content, are available on the web. They have been translated into many languages, centrally updated and already used extensively worldwide. Open standard licences, for example the most recent Creative Commons (CC) licences (version 4.0), could allow the re-use of PSI without the need to develop and update custom-made licences at national or sub-national level. Of these, the CC0 public domain dedication is of particular interest. As a legal tool that allows waiving copyright and database rights on PSI, it ensures full flexibility for re-users and reduces the complications associated with handling numerous licences, with possibly conflicting provisions. If the CC0 public domain dedication cannot be used, public sector bodies are encouraged to use open standard licences appropriate to a member state’s own national intellectual property and contract law and that comply with the recommended licensing provisions set out below.

This recommendation for the use of Open Definition compliant licenses and tools shows that the Commission has clearly understood concerns about license fragmentation that COMMUNIA and others had raised during during the legislative process that lead to the amendment of the PSI directive. In our 2012 policy paper on the proposal to amend the PSI Directive we had noted:

Instead of encouraging member states to develop and use open government licenses such as those that are currently used by the governments of the United Kingdom and France, the Commission should consider advocating the use of a single open license that can be applied across the entire European Union.

Such licenses do exist and are widely used by a broad spectrum of data and content providers. […] COMMUNIA therefore advises the Commission to consider using an existing open license that complies with the Definition of Free Cultural Works as a pan European standard license for Public Sector Information. Appropriate licenses include the Creative Commons Zero Universal Public Domain Dedication (CC0) or the widely used Creative Commons Attribution License (CC BY).

Lets hope that member states and public sector bodies will follow these recommendations and that the trend towards license fragmentation that accompanied the beginning of the open data movement has abated. In this respect it is encouraging that the list of Open Definition conformant licenses is still relatively short and only contains two licenses that have been developed specifically for a national government.

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