Re: Comparing Activity Streams / Schema.org / Hydra (former: 'Fwd: Schema.org applies W3C Patent Policy')

I will be attending the upcoming TPAC. Specifically, the Social WG
face to face and likely the one for the Social IG should they decide
to do a separate get together. There ought to be plenty of extra time
to get together and discuss this.

On Tue, Sep 2, 2014 at 1:53 PM, ☮ elf Pavlik ☮
<perpetual-tripper@wwelves.org> wrote:
> Thanks for fast reply James!
>
> I forwarded it to Hydra CG and Schema.org mailing lists:
> * http://lists.w3.org/Archives/Public/public-hydra/2014Sep/0001.html
> * http://lists.w3.org/Archives/Public/public-vocabs/2014Sep/0015.html
>
> If we could exchange few emails about it with your, Markus Lanthaler and
> Sam Goto (both in cc), and then maybe discuss it together over telecon,
> I believe we would clarify it all in no time!
>
> Maybe also you all will also have chance to discuss it face-to-face
> during next TPAC? http://www.w3.org/2014/11/TPAC/
>
> Cheers :)
>
>
> On 09/02/2014 04:42 PM, James M Snell wrote:
>> A review on these would be helpful.
>>
>> The model in AS2 is straightforward. For every object, there is an
>> "actions" property whose value is a map of potential actions. This map
>> takes the form of a JSON object mapping verb identifiers to so-called
>> "action handlers". An action handler is a declarative description of
>> how to carry out some kind of action.
>>
>> Where schema.org/Actions, Hydra and the AS2 Action Handlers specs
>> overlap is on the definition of those "action handlers". Where
>> schema.org/Actions and AS2 conflict is on the use of the "actions"
>> property in AS2 vs. "potentialAction" in schema.org.
>>
>> (It's worthwhile to note that the Activity Streams 2.0 [1] and Action
>> Handlers [2] specifications are distinct documents.)
>>
>> [1] http://jasnell.github.io/w3c-socialwg-activitystreams/activitystreams2.html
>> [2] http://jasnell.github.io/w3c-socialwg-activitystreams/activitystreams2-actions.html
>>
>> So, for example, if we take an example given by the schema.org/Actions
>> documentation:
>>
>> {
>>   "@context": "http://schema.org",
>>   "@type": "Restaurant",
>>   "name": "Tartine Bakery",
>>   "potentialAction": {
>>     "@type": "ViewAction",
>>     "target": [
>>       "http://www.urbanspoon.com/r/6/92204",
>>       {
>>         "@type": "EntryPoint",
>>         "urlTemplate": "http://api.urbanspoon.com/r/6/92204",
>>         "contentType": "application/json+ld"
>>       },
>>       "android-app://com.urbanspoon/http/www.urbanspoon.com/r/6/92204",
>>       {
>>         "@type": "EntryPoint",
>>         "urlTemplate": "urbanspoon://r/6/92204",
>>         "application": {
>>           "@type": "SoftwareApplication",
>>           "@id": "284708449",
>>           "name": "Urbanspoon iPhone & iPad App",
>>           "operatingSystem": "iOS"
>>         }
>>       },
>>       {
>>         "@type": "EntryPoint",
>>         "urlTemplate": "urbanspoon://r/6/92204",
>>         "application": {
>>           "@type": "SoftwareApplication",
>>           "@id": "5b23b738-bb64-4829-9296-5bcb59bb0d2d",
>>           "name": "Windows Phone App",
>>           "operatingSystem": "Windows Phone 8"
>>        }
>>       }
>>     ]
>>   }
>> }
>>
>> The equivalent definition in AS2 would something look like:
>>
>> {
>>   "objectType": "http://schema.org/Restaurant",
>>   "displayName": "Tartine Bakery",
>>   "actions": {
>>     "view": [
>>       "http://www.urbanspoon.com/r/6/92204",
>>       {
>>         "objectType": "HttpActionHandler",
>>         "id": "http://api.urbanspoon.com/r/6/92204",
>>         "mediaType": "application/json+ld"
>>       },
>>       "android-app://com.urbanspoon/http/www.urbanspoon.com/r/6/92204",
>>       {
>>         "objectType": "application",
>>         "id": "urbanspoon://r/6/92204",
>>         "appid": "284708449",
>>         "displayName": "Urbansppon iPhone & iPad App",
>>         "operatingSystem": "iOS"
>>       },
>>       {
>>         "objectType": "application",
>>         "id": "urbanspoon://r/6/92204",
>>         "appid": "5b23b738-bb64-4829-9296-5bcb59bb0d2d",
>>         "displayName": "Windows Phone App",
>>         "operatingSystem": "Windows Phone 8"
>>       }
>>     ]
>>   }
>> }
>>
>> I have not looked at Hydra in enough detail yet to know how the
>> example would translate there.
>>
>> The approaches that schema.org/Actions and AS2 Actions take differ in
>> a number of fairly obvious ways. Both, however, are capable of
>> expressing the same basic information in relatively consistent ways.
>> The devil, however, is always in the details.
>>
>> I'll admit my bias up front since I'm the co-author of the AS2 Action
>> Handlers spec, but I prefer the more concise approach it takes. While
>> the specification defines a handful of basic Action Handler types
>> (View, Http, Embed and Intent), these are flexible enough to support
>> an extremely broad range of cases and can easily be mapped to existing
>> verb identifiers. As the examples in my various blog posts illustrate,
>> it's also possible to use other kinds of Action Handlers in the AS2
>> model (for instance, we could easily make use of the
>> schema.org/Actions definitions directly without any modification).
>>
>> - James
>>
>> On Tue, Sep 2, 2014 at 7:19 AM, ☮ elf Pavlik ☮
>> <perpetual-tripper@wwelves.org> wrote:
>>> Hello,
>>>
>>> I would like to propose in depth discussion on Schema.org / Activity
>>> Streams / Hydra
>>>
>>> We have both ActivityStreams & Schema.org listed at
>>> https://www.w3.org/wiki/Socialwg/Social_syntax
>>>
>>> I can also recall at least two articles by James Snell where he works
>>> with them both:
>>> *
>>> http://www.chmod777self.com/2014/04/activity-streams-20-and-schemaorgactions.html
>>> * http://www.chmod777self.com/2014/05/more-on-activity-streams-20-and.html
>>>
>>> Then again Schema.org Actions and Hydra have many similarities and
>>> history of collaboration:
>>> http://blog.schema.org/2014/04/announcing-schemaorg-actions.html
>>>
>>> I must admit not reading enough yet about Activity Streams 2.0 Action
>>> Handlers to position them here...
>>>
>>> #ACTION - Would someone like to work with me in next two weeks to
>>> prepare overview of similarities and differences in all mentioned
>>> technologies? It would hopefully make it much easier for everyone to
>>> engage in further conversation.
>>>
>>> Cheers!
>>>
>>> On 09/01/2014 07:58 PM, Harry Halpin wrote:
>>>> In case people missed this from the last IG meeting!
>>>>
>>>> -------- Forwarded Message --------
>>>> Subject: Schema.org applies W3C Patent Policy
>>>> Resent-Date: Mon, 01 Sep 2014 17:54:15 +0000
>>>> Resent-From: public-socialweb@w3.org
>>>> Date: Mon, 01 Sep 2014 19:54:07 +0200
>>>> From: Harry Halpin <hhalpin@w3.org>
>>>> To: public-socialweb@w3.org <public-socialweb@w3.org>
>>>>
>>>> Those who were at the Social Standards workshop last August will
>>>> remember a discussion with Guha over schema.org and licensing. People
>>>> should  know that Schema.org has now changed their licensing to be
>>>> royalty-free in the following manner:
>>>>
>>>> "The Sponsors have applied the W3C Patent Policy to the schemas
>>>> published by Schema.org as follows: each Sponsor, by itself and on
>>>> behalf of its affiliates, agrees to make available under W3C RF
>>>> licensing requirements its Essential Claims (if any) in the schemas
>>>> published by Schema.org as if the schemas were W3C Recommendations. In
>>>> some cases, this website may indicate that some but not all of the
>>>> Sponsors have recognized a particular extension to the Schema; in
>>>> those cases, as to that extension, the above rights are granted by
>>>> only those recognizing Sponsors. " [1]
>>>>
>>>>    cheers,
>>>>     harry
>>>>
>>>> [1]https://www.schema.org/docs/terms.html
>>>>
>>>
>>>
>>
>

Received on Tuesday, 2 September 2014 21:36:38 UTC