Difference between revisions of "item-license"

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(add Mike Linksvayer as co-editor as recognition for his contributions to this brainstorm proposal, and his evaluation of it as "good enough to gather some data".)
(andhika63.net has been moved, it is now a redirect to hCard 1.0)
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<entry-title>item-license</entry-title>
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#redirect:[[hcard]]
 
 
<dfn>[[item-license]]</dfn> is one of several [[licensing]] [[licensing-brainstorming|brainstorm proposals]], per the microformats [[process]] towards developing a licensing microformat for authors to indicate licenses to portions of pages or external resources like images.
 
 
 
 
; Editors
 
: <span class="vcard"><span class="fn">[[User:Tantek|Tantek Çelik]]</span> (<span class="url">http://tantek.com/</span>)</span>
 
: <span class="vcard"><span class="fn">[http://creativecommons.org/about/people#ml Mike Linksvayer]</span> (<span class="org">[http://creativecommons.org/ Creative Commons]</span>)</span>
 
 
 
== summary ==
 
This proposal (re-)uses the containing/root class "item" (see also [[hReview]], [[hListing]], [[hProduct]]) to indicate the scope of the thing that is being licensed, <code>rel="item-license"</code> to indicate the specific license(s), "item-url" to license one or  external resources like images, and "attribution" to indicate attribution information.
 
 
 
== content portion licensing ==
 
Here is an example of a chunk of hypertext content that is being licensed:
 
 
 
<source lang=html4strict>
 
<div class="item">
 
  <p>... blog post or article text content ...</p>
 
  <p>This is licensed under a
 
  <a rel="item-license" href="http://creativecommons.org/licenses/by-nc/3.0/">
 
  Creative Commons attribution non-commercial 3.0 license</a>.
 
  </p>
 
</div>
 
</source>
 
 
 
with <span id="dual">dual</span> licensing:
 
 
 
<source lang=html4strict>
 
<div class="item">
 
  <p>... blog post or article text content ...</p>
 
  <p>This is licensed under a
 
  <a rel="item-license" href="http://creativecommons.org/licenses/by-nc/3.0/">
 
  Creative Commons attribution non-commercial 3.0 license</a>
 
  and a
 
  <a rel="item-license" href="http://creativecommons.org/licenses/by-nd/3.0/">
 
  Creative Commons attribution no-derivative works 3.0 license</a>.
 
  </p>
 
</div>
 
</source>
 
 
 
In this case, the publisher is stating that either you may re-use and edit etc. the content for non-commercial purposes, or you re-use for commercial purposes but may not make derivative works.
 
 
 
== external resource licensing ==
 
To specify a license on an external resource like a photograph, we can use a new class name "item-url" to identify the external resource as being the actual item:
 
 
 
<source lang=html4strict>
 
<div class="item">
 
  This
 
  <a class="item-url" href="photo.jpg">photograph</a>
 
  is licensed under a
 
  <a rel="item-license" href="http://creativecommons.org/licenses/by-nc/3.0/">
 
  Creative Commons attribution non-commercial 3.0 license
 
  </a>.
 
</div>
 
</source>
 
 
 
== format ==
 
 
 
=== root class name ===
 
The root class name for item-license is <code>item</code>.
 
 
 
A simple item can be indicated as follows:
 
 
 
<source lang=html4strict>
 
<span class="item">
 
...
 
</span>
 
</source>
 
 
 
As with other microformats, the particular element (span, div, etc.) doesn't matter for item-license.
 
 
 
=== properties ===
 
The following properties can be specified as class names unless otherwise indicated.  All properties are optional and may occur more than once.
 
 
 
* '''<code>item-license</code>''' - a rel-value used on a hyperlink to a license for the item. multiple instances indicate independent licensing options.
 
* '''<code>item-url</code>''' - an external representation of the item that is licensed, such as an image, video, audio, binary download, etc.
 
* '''<code>attribution</code>''' - an author/creator (which {{should}} be represented with an [[hCard]], possibly with a URL to the person/organization) to be attributed for the item. if "attribution" is specified directly on a hyperlink, the hyperlink represents a link to a page with the item and copyright information for the item.
 
 
 
=== property details ===
 
==== item-license details ====
 
* Authors {{should}} provide at least one "item-license".
 
* If there is no item-license link in the item, then the item is not explicitly licensed.
 
==== item-url details ====
 
* Authors {{should}} provide at least one "item-url" when an external resource is being licensed.
 
* If more than one "item-url" is provided, they must be considered copies/mirrors/versions (perhaps different resolutions or formats) of the same item, and all have the same license(s) and attribution terms (if any) applied to them.
 
 
 
Possible additions to item-url to handle local items in other parts of the page:
 
* At most one "item-url" may reference a local fragment id (e.g. <code>&lt;a href="#real-item" class="item-url"&gt;</code>), and if there is such an "item-url" then it indicates that the entirety of the item is represented by the microformat at that fragment id.  This would permit licensing information on one part of a page to refer to an item (such as a blog post) on another part of a page. Anecdotally, I remember seeing blogs where the licensing of the blog posts is in the footer, separate from the chunk of content that contains the blog posts themselves. In most cases [[rel-license]] may be sufficient here - that is, applying to the whole page, but that doesn't cover the "attribution" use case, nor the possible (but needs examples) use case of where the posts are licensed, but not other content on the page.
 
** real world examples needed to help guide this.
 
* Allow "item-url" to reference *multiple* items that the license applies to, e.g. all the blog posts on a page, but not the page itself. A space separated set of fragment id references could work for representing this, e.g. (e.g. <code>&lt;a href="#real-item-1 #real-item-2 #real-item-n" class="item-url"&gt;</code>), but would likely not work well in the interactivity of that hyperlink.
 
** real world examples needed to help guide this
 
* Alternatively,  some other mechanism for a license description (rel-item-license + attribution) to reference one or more items elsewhere on the page.
 
** Though it probably makes more sense to simply use the [[include-pattern]] in those items elsewhere on the page to all include a common "item-license" at the footer of a page.  The only case this wouldn't work for is if the item-license was an ancestor of all the items, which the include-pattern would disallow including.
 
 
 
==== attribution details ====
 
* If "attribution" is directly specified on a hyperlink (<code>&lt;a href&gt;</code>), the "href" indicates the suggested link to the original item that is being licensed and contains copyright information for the item being licensed.
 
* if it is on an hCard, the "fn" of the hCard indicates the name of an author/creator of the work, and the "url" indicates the URL that is suggested for linking to their name (prefer the first "url" with "uid" if any, otherwise the first "url" if the hCard has more than one).
 
* if "attribution" is on an element that is neither a hyperlink nor an hCard, then the element indicates the name of an author/creator of the work
 
 
 
=== more examples ===
 
The following examples illustrate how the properties interact, and multiple uses of properties.
 
 
 
==== multiple resolutions licensing ====
 
multiple <code>item-url</code> properties:
 
 
 
e.g. a link to the photo and embedding a thumbnail or small version of the photo:
 
 
 
<source lang=html4strict>
 
<div class="item">
 
  This
 
  <a class="item-url" href="photo.jpg">photograph:
 
  <img class="item-url" href="smallphoto.jpg" alt="small version of a photograph" />
 
  </a>
 
  is licensed under a
 
  <a rel="item-license" href="http://creativecommons.org/licenses/by-nc/3.0/">
 
  Creative Commons attribution non-commercial 3.0 license
 
  </a>.
 
</div>
 
</source>
 
 
 
==== attribution example to an author ====
 
<source lang=html4strict>
 
<div class="item">
 
  This
 
  <a class="item-url" href="photo.jpg">photograph</a>
 
  is licensed under a
 
  <a rel="item-license" href="http://creativecommons.org/licenses/by-nc/3.0/">
 
  Creative Commons attribution non-commercial 3.0 license
 
  </a>.
 
  Please attribute the photo to <span class="attribution">Mary Smith</span>
 
</div>
 
</source>
 
 
 
with an [[hCard]] for the author:
 
 
 
<source lang=html4strict>
 
<div class="item">
 
  This
 
  <a class="item-url" href="photo.jpg">photograph</a>
 
  is licensed under a
 
  <a rel="item-license" href="http://creativecommons.org/licenses/by-nc/3.0/">
 
  Creative Commons attribution non-commercial 3.0 license
 
  </a>.
 
  Please attribute the photo to
 
  <span class="attribution vcard">
 
    <span class="fn">Mary Smith</span>
 
  </span>
 
</div>
 
</source>
 
 
 
with a hyperlinked [[hCard]] for the author:
 
 
 
<source lang=html4strict>
 
<div class="item">
 
  This
 
  <a class="item-url" href="photo.jpg">photograph</a>
 
  is licensed under a
 
  <a rel="item-license" href="http://creativecommons.org/licenses/by-nc/3.0/">
 
  Creative Commons attribution non-commercial 3.0 license
 
  </a>.
 
  Please attribute the photo to
 
  <span class="attribution vcard">
 
    <a class=" fn url" href="http://mary.example.com/">Mary Smith</a>
 
  </span>
 
</div>
 
</source>
 
 
 
==== attribution example to original and author ====
 
multiple <code>attribution</code> properties:
 
 
 
<source lang=html4strict>
 
<div class="item">
 
  This
 
  <a class="item-url" href="photo.jpg">photograph</a>
 
  is licensed under a
 
  <a rel="item-license" href="http://creativecommons.org/licenses/by-nc/3.0/">
 
  Creative Commons attribution non-commercial 3.0 license
 
  </a>.
 
  Please attribute the photo to
 
  <span class="attribution vcard">
 
    <a class=" fn url" href="http://mary.example.com/">Mary Smith</a>
 
  </span>
 
  and link to
 
  <a class="attribution" href="http://mary.example.com/photo123/">the original photo page</a>.
 
</div>
 
</source>
 
 
 
== references ==
 
=== normative references ===
 
* [[hCard]]
 
 
 
== background ==
 
[[item-license]] was extracted and expanded from the [[licensing-brainstorming#item_as_container|item as container]] proposal in [[licensing-brainstorming]].
 
 
 
== see also ==
 
* [[licensing]]
 
* [[licensing-examples]]
 
* [[licensing-formats]]
 
* [[licensing-brainstorming]]
 
 
 
== to do ==
 
EDITORS NOTES:
 
* post photo (and embed/link here) of whiteboard brainstorm 2010-055 at Creative Commons offices with Tantek Çelik and Mike Linksvayer and details
 
* write up an [[XMDP]] for item-license
 
* have [[hNews]] reference this page
 
* write-up item-license examples similar to [http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html#licensing-works microdata works vocabulary] samples/examples (also [http://dev.w3.org/html5/md/#examples microdata works vocab to RDF example].)
 
* document how to convert item-license to RDF, similar to [http://dev.w3.org/html5/md/#rdf converting HTML5+microdata to RDF] (see also [http://www.whatwg.org/specs/web-apps/current-work/multipage/converting-html-to-other-formats.html#rdf WHATWG microdata to RDF].
 
** specifically how to convert item-license to [http://creativecommons.org/ns# ccREL namespace] (see also related: [http://www.w3.org/Submission/ccREL/ old ccREL submission to W3C]).
 
* consider any interactions between "item, item-url, attribution" and [[citation]], and document how to use together of possible future interoperability
 
* consider any interactions between "item-url" and [http://citability.pbworks.com/ Citability]
 
 
 
== feedback ==
 
Please feel free to provide feedback (questions, issues etc.) about [[item-license]] here.  If this section gets too big we can move it to [[item-license-feedback]].  Thanks! -Tantek
 
 
 
* ...
 

Revision as of 01:27, 25 August 2012

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