How to attribute Darwin Core

[peterdesmet]

The TDWF executive has decided to choose for CC BY 4.0 as the default license for all TDWG documents. The attribution requirements are:

1. If You Share the Licensed Material (including in modified
          form), You must:

            a. retain the following if it is supplied by the Licensor
               with the Licensed Material:

                 i. identification of the creator(s) of the Licensed
                    Material and any others designated to receive
                    attribution, in any reasonable manner requested by
                    the Licensor (including by pseudonym if
                    designated);

                ii. a copyright notice;

               iii. a notice that refers to this Public License;

                iv. a notice that refers to the disclaimer of
                    warranties;

                 v. a URI or hyperlink to the Licensed Material to the
                    extent reasonably practicable;

            b. indicate if You modified the Licensed Material and
               retain an indication of any previous modifications; and

            c. indicate the Licensed Material is licensed under this
               Public License, and include the text of, or the URI or
               hyperlink to, this Public License.

       2. You may satisfy the conditions in Section 3(a)(1) in any
          reasonable manner based on the medium, means, and context in
          which You Share the Licensed Material. For example, it may be
          reasonable to satisfy the conditions by providing a URI or
          hyperlink to a resource that includes the required
          information.

       3. If requested by the Licensor, You must remove any of the
          information required by Section 3(a)(1)(A) to the extent
          reasonably practicable.

       4. If You Share Adapted Material You produce, the Adapter's
          License You apply must not prevent recipients of the Adapted
          Material from complying with this Public License.

Tasks

1. To help users, it would be best to provide a document that includes the required information, so people can reference that. I would be best if that information lives at http://rs.tdwg.org/dwc/ and people can just reference that (which is done in numerous applied uses of the standard, e.g. DwC archives).
2. We need to indicate that a URL often suffices. I currently wrote it as:

   License

Darwin Core (c) by the Darwin Core Task Group, Biodiversity Informatics Standards (TDWG). Darwin Core is licensed under a Creative Commons Attribution 4.0 International License. A copy of the license is provided in LICENSE.

How to attribute and cite Darwin Core

Use the recommended citation format where possible in publications. For applied uses, referencing http://rs.tdwg.org/dwc/ suffices. The recommended citation format is (substitute the parenthetical date accessed with today's date):

Darwin Core Task Group, Biodiversity Information Standards (TDWG). 2009. Darwin Core. 
http://rs.tdwg.org/dwc/ (accessed on 2014-10-29).

See also #6

[tucotuco]

The rdf files need the license information in them as well. This activity does not need to go to public commentary.

[tucotuco]

Added license to the file dwc_normative.rdf and set the modified date in bebc6d2483da8e3a8fb2003082ca89a70bf73414.

[tucotuco]

Simplified the "How to cite Darwin Core" section of the Project README.