- From: Stéphane Corlosquet <scorlosquet@gmail.com>
- Date: Thu, 13 Dec 2012 14:48:41 -0500
- To: kcoyle@kcoyle.net
- Cc: Dan Brickley <danbri@google.com>, Phil Archer <phila@w3.org>, "public-vocabs@w3.org" <public-vocabs@w3.org>, Egor Antonov <elderos@yandex-team.ru>
- Message-ID: <CAGR+nnEgYgw9h7Vo6P4n=FuqAp2xU_xQCpskezkr7B7EMmYb2g@mail.gmail.com>
I agree that a notion of maxAge is useful (be it recommendedMaxAge or suggestedMaxAge). Age range is used as facet on e-commerce sites such as [1]. You can find similar age range on some item detail pages as well, for example this game of Angry Birds [2] says "Manufacturer recommended age: 5 - 9 years". Despite this recommendation, I bought this as a gift for a 30+, proof that it can be fun for those older than 9 yo. It's up to the consumer to do what they want with this info. Steph. [1] http://www.amazon.com/s/?field-keywords=board+games [2] http://www.amazon.com/Angry-Birds-Knock-Wood-Game/dp/B004U52VPS/ On Thu, Dec 13, 2012 at 2:29 PM, Karen Coyle <kcoyle@kcoyle.net> wrote: > Just to add a similar usage, materials aimed at K-12 students and teachers > often include a grade range ("grades 3-6") which is a suggested > minimum/maximum. It doesn't look to me that the educational community has > yet added its view to schema.org, but age and/or grade and/or skills > level will naturally be a part of that. The GEM vocabulary [1] includes > grade, level and age, and those can be ranges. They aren't meant to > exclude, they are information for educators (or parents) who are seeking > appropriate materials. I think of it as a "clue" rather than a "rule." > > kc > [1] http://dublincore.org/groups/**education/GEM-Study.html<http://dublincore.org/groups/education/GEM-Study.html> > > > On 12/13/12 11:06 AM, Dan Brickley wrote: > >> (top posting, but leaving some context below) >> >> Phil, >> >> We've discussed this (and your points below) amongst the schema.org >> partners. Here is a sketch of a compromise approach. >> >> 1. First, we acknowledge that schemas are useful when they reflect the >> complexity of real life rather than codifying over-stereotypical or >> cartoon views of the world, even though schemas by definition are >> always to some extent simplified descriptions. For example, schemas >> that describe people and model gender as a static binary property are >> over-simplifying the lives of many people, and can casually cause >> entirely avoidable offense. Although lots of Web sites do simplify in >> this way, it is probably not a good idea to have binary 'gender' >> properties in Web schemas, since sites that offer a more realistic >> nuanced view of the world shouldn't be forced to adopt the simplified >> view. >> >> 2. Generally sites have an incentive not to arbitrarily exclude >> potential audiences from their materials and offers; suggestedMaxAge >> is therefore probably of modest interest to most publishers. >> >> 3. There are some reasonable use cases for targeting content and >> offers by gender (e.g. health), and age (e.g. mortgage policies). Any >> reasonably expressive descriptive schema can be used to say >> ill-advised things. While there are unreasonable or foolish or >> tasteless or thoughtless potential uses of such vocabulary; it is not >> clear that restricting schema.org's vocabulary will help discourage >> sites from saying those things in natural language. It is hard to make >> general schema design policies in this area, and perhaps better to >> consider terms case by case. In this particular case, sites that >> needlessly exclude audiences may well be nudged more by common sense >> (why exclude potential customers?) than by the decisions of schema >> designers. >> >> 4. Schema.org provides a dictionary of terms; it leaves open the >> possibility of very different uses being made of those terms. You >> could use it to make a search system that excluded sites it deemed >> sexist or ageist or otherwise socially regressive. Or you could use it >> quite opposite ways. Neither usage scenario would be dictated by the >> definition of 'suggestedMaxAge'; the property would just make the >> statements from publishers easier to compute with. >> >> My sense is that there is enough reason to add such a property, but >> that it is worth documenting the fact that it is generally less useful >> than the suggested*Minimum*Age property. Speaking personally, although >> I do feel the Guardian-reading liberal urge to try to reform the world >> through schema design, I think that impulse should generally be >> restricted to avoiding patterns (eg. the gender example given earlier) >> whose every use is somehow problematic. >> >> Thanks for any further thoughts on this, >> >> cheers, >> >> Dan >> >> >> On 10 December 2012 18:10, Egor Antonov <elderos@yandex-team.ru> wrote: >> >>> Hi Phil, >>> >>> thanks for the review. >>> Let me emphasize, that these properties are not restrictive (at the last >>> schema.org talk we decided to rename them to suggestedMinAge etc to >>> make it >>> more clear). >>> It's just a hint for personalization issues, pointing at the nucleous of >>> people, who maybe want to view/buy/use some content. >>> If somebody searches for films, he/she probably wants to see that films >>> which are intended for his/her age (and gender, too). >>> Also, there can be non-matching correlation between user and intended >>> audience. >>> We can understand, that somebody likes non-typical (for his age/gender) >>> things and suggest those things he/she likes. >>> >>> There are many websites with products, services and creative works, >>> which >>> explicitly mark their audience: >>> Games (5-12 years old): >>> http://www.mosigra.ru/Face/**Show/detskie_detektivi_5_12/<http://www.mosigra.ru/Face/Show/detskie_detektivi_5_12/> >>> Sport classes (mostly constrained by age in Russia): http://ttcentr.ru/ >>> Music courses (also russian): http://www.muz-school.ru/**courses/deti<http://www.muz-school.ru/courses/deti> >>> http://www.ssww.com/item/**candy-land-GA4700/cmc=** >>> BRWSGAMBRDYTH/grp=GAM/sbgrp=**BRD/ln=YTH/fp=GA4700/sort=**sales/p=1/<http://www.ssww.com/item/candy-land-GA4700/cmc=BRWSGAMBRDYTH/grp=GAM/sbgrp=BRD/ln=YTH/fp=GA4700/sort=sales/p=1/> >>> http://www.games14.co/ >>> http://www.gymboree.com/index.**jsp?ASSORTMENT%3C%3East_id=** >>> 1408474395917465&FOLDER%3C%**3Efolder_id=2534374303003787&** >>> bmUID=1354815600298<http://www.gymboree.com/index.jsp?ASSORTMENT%3C%3East_id=1408474395917465&FOLDER%3C%3Efolder_id=2534374303003787&bmUID=1354815600298> >>> (see categories) >>> >>> (I skip huge amount of woman clothes) >>> >> >> 2. The Audience proposal; based on the RDFa schema in >>> https://bitbucket.org/elderos/**schemaorg/src<https://bitbucket.org/elderos/schemaorg/src>I've built a test version >>> of the schema.org site that includes the Audience proposal (see >>> http://www.w3.org/wiki/**WebSchemas/Audience<http://www.w3.org/wiki/WebSchemas/Audience>). The draft site is at >>> http://sdo99a.appspot.com e.g. see http://sdo99a.appspot.com/** >>> Audience <http://sdo99a.appspot.com/Audience> >>> >>> [..] >>> >>> From a technical point of view, this is fine of course. From an ethical >>> one, there are aspects I find seriously worrying if not potentially >>> offensive. >>> >>> Why does anyone need to define the maximum age of an audience? An adult >>> friend of mine is not a strong reader. He reads books targeted at 11 >>> year olds - and enjoys them. Why put it in his face that he's reading >>> children's books? >>> >>> Minimum age - fine. We understand that. But you won't ever see a maximum >>> age on a film or game. >>> >>> Daft. Drop it. >>> >>> Gender? For a target audience? What? OK, so I'm a wishy washy dripping >>> wet liberal but if a girl wants to play with "boys' toys" or a boy wants >>> to read "chick lit" - why not? I think the content should speak for >>> itself and the potential consumer decide whether he/she wants it. The >>> Twilight saga is basically aimed at teenage girls, yes? I know at least >>> one teenage boy that read the whole series and many post-teenage girls >>> who enjoyed it too. >>> >>> Of course content *is* targeted at gender, but I don't think it should >>> be part of the data. >>> >>> Drop it. >>> >>> The parental ones - i.e. this is for parents of children aged x - y does >>> make sense. That's potentially useful for parents. >>> >> >> >> > -- > Karen Coyle > kcoyle@kcoyle.net http://kcoyle.net > ph: 1-510-540-7596 > m: 1-510-435-8234 > skype: kcoylenet > > -- Steph.
Received on Thursday, 13 December 2012 19:49:11 UTC