Re: Raising the issue of collections, especially of learning resources, within schema.org

Given my relative lack of expertise on the format side, I'll re-iterate
some use-cases first and hopefully someone will have suggestions:

   1. Create a table of contents to a book, where each entry in the ToC is
   itself either another OrderedCollection or a URL to something more tangible
   (like a PDF or html page)
   2. Create a learning progression description (could be also a syllabus
   or curriculum)
   1. Each link in the OrderedCollection needs to describe the link itself
      in various ways
         1. Link metadata might be arbitrary but would probably include:
         link type (relationship) and required attributes

In a naive implementation, I'd guess I'd want:

   - A schema structure for links themselves
   - Extend ItemLists to LinkLists (to let me list Links in arbitrary order
   - in html probably ol/ul; in json probably arrays of hashes I guess)
   - Decorate the OrderedCollectionPage with LinkList objects


DataType(?!) > *Link*
[[all from CreativeWork?]]
*relationship*: text describing the link relationship
*required*: true if link is mandatory in context of completing a pathway in
an OrderedCollection

Thing > CreativeWork > ItemList > *LinkList*
[*Extends *ItemList to permit Link object for each item in list]

Thing > CreativeWork > WebPage > CollectionPage > *OrderedCollectionPage*
*linksTo: *LinkList

Is that crazy?
Steve



On Mon, Sep 9, 2013 at 3:22 PM, Wallis,Richard <Richard.Wallis@oclc.org>wrote:

>  Copying Schemabibex list for information.
>
>  Steve,
>
>  My reaction is that an OrderedCollection should be a sub-type of
> Collection.
>
>  The question then comes to how you represent the ordering.   RDF gives
> us ref:first, rdf:rest, ref:nil, but I can't see how these would easily map
> into the schema.org world.
>
>  We could have first & last as properties for OrderedCollection, the
> challenge would be ordering the ones in-between.
>
>  Any suggestions?
>
>
>  ~Richard
>
>  On 9 Sep 2013, at 17:22, Steve Midgley <steve.midgley@mixrun.com> wrote:
>
>  Great topic.
>
>  If we take on collections, I feel like I'd want them to let me express
> "ordered relations" similar to what Jason was talking about with the
> JSON-LD question recently.
>
>  For example, not only do I want a simple collection of LRMI resources,
> but I'd like to be able to express the collection in some type of order. So
> I can have all the units of instruction in a specified order (each unit
> might be an LRMI resource)..
>
>  But it opens up a rabbit hole of complexity (does it support multiple
> branches of collections? what about named branches - one for "advanced" one
> for "more explanation"? Does it support nested collections, so "Course" has
> a bunch of units, each unit is a collection of resources, etc?)
>
>  Steve
>
>
> On Fri, Sep 6, 2013 at 1:49 AM, Phil Barker <phil.barker@hw.ac.uk> wrote:
>
>>
>> Hello Charles, hello all,
>> I mostly agree with subject line: we should be raising the issue of
>> collections, it is not something special to learning resources, but perhaps
>> we have special cases relevant to education that should be raised.
>>
>> There was a proposal from schema bibliography group
>> http://www.w3.org/community/schemabibex/ for collections
>> http://www.w3.org/wiki/WebSchemas/Collection discussed on the public
>> schemas list over the summer -- the latter part of the discussion is toward
>> the end of this page
>> http://lists.w3.org/Archives/Public/public-vocabs/2013Jul/thread.html
>>
>> cc-ing Richard Wallis who may know where that proposal stands?
>>
>> Furthermore....
>> I think there is a similar issue around events that comes up when we
>> discuss courses. A lecture course is a series of educational events and it
>> would be nice to be able to say so, but (I think) schema.org only knows
>> about TV series. Put the two together and a "course" in a more general
>> educational sense is a series or structured collection of educational
>> events and/or creative works. If an educational course is a type of
>> collection then collection has a wider domain than creative works.
>>
>> Phil
>>
>>
>> On 06/09/2013 05:08, Charles Myers wrote:
>>
>>  The Accessibility metadata thread on the W3C public vocabs list has
>> heated up lately.  You can see this at
>> http://lists.w3.org/Archives/Public/public-vocabs/2013Sep/ although my
>> responses are currently blocked at the W3C, as I just started on the lists.
>> You can also see the thread on the accessibility metadata google group at
>> http://www.a11ymetadata.org/discuss/
>>
>>  While I was writing one of my emails on a hot thread today, I was
>> reminded of a longstanding schema.org issue that I wanted to bring up to
>> the LRMI group. Every LRMI workshop I've been to has a box of books as a
>> package. See http://www.mcgraw-hill.co.uk/sra/rl_index.html for a good
>> example. But the lament has always been that there is no such mechanism in
>> schema.org for having a collection.
>>
>>  Well, that's wrong.  There is one.  It's
>> http://schema.org/CollectionPage , but is expected to be a collection of
>> web pages and exclsuive to that.  In fact, the way that it works is that
>> WebPage has a property isPartOf, which then points to the collection page.
>>
>>  I believe that LRMI should consider bringing the concept of the
>> collection and abstracting this to be a collection of any creative works,
>> whether book, web page, app or video, to schema.org.  It's not a
>> specific LRMI issue, but it comes up commonly in LRMI content.
>>
>>  Also, do take a look in at the debate going on the public vocabs list.
>> This is the first significant dialog we've had with the entire schema.orggroup, and your insights can help us get the best quality specification
>> adopted, and then work on getting it applied to learning resources.
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>>  -- <http://www.icbl.hw.ac.uk/~philb/> <http://www.icbl.hw.ac.uk/~philb/>
>>
>>
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