- From: Markus Lanthaler <markus.lanthaler@gmx.net>
- Date: Thu, 7 Aug 2014 22:30:04 +0200
- To: "'W3C Web Schemas Task Force'" <public-vocabs@w3.org>
On Thursday, August 07, 2014 10:06 PM, Vicki Tardif Holland wrote: > On Thu, Aug 7, 2014 at 3:36 PM, Markus Lanthaler wrote: >> It is also not clear to me what "positionBasis" is and how "itemListOrder" >> is going to be used. Also here, I would appreciate some explanations. > > The "itemListOrder" property already exists. It is supposed to signal whether this > list is ordered, and if so, is it an ascending or descending list. Hmm... I don't think I understand what an ascending or descending list is in this context. Let's assume the items are 1 2 3. Is the list ascending or descending? What makes the example at http://schema.org/ItemList a descending list? > The new "positionBasis" is designed to give more information for how something > came to be in a particular position. For example, if I want to mark up the Billboard > 200 artists with the most cumulative weeks at number one > (see http://en.wikipedia.org/wiki/Billboard_200), I could give the Beatles the > positionBasis of 132. Thanks for the explanation. > I think it is fair to ask whether positionBasis needs to carry units as well as a value. I think the question should rather be what use cases positionBasis addresses if it isn't clear what it expresses. In the example above, a property like weeksInCharts would carry that information. -- Markus Lanthaler @markuslanthaler
Received on Thursday, 7 August 2014 20:30:37 UTC