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Actions in Schema.org

From: Jim Klo <jim.klo@sri.com>
Date: Sun, 12 May 2013 06:45:39 +0000
To: Dan Brickley <danbri@google.com>
CC: W3C Web Schemas Task Force <public-vocabs@w3.org>
Message-ID: <8A511EFA-965D-4BC9-8348-F570F4DF57D2@sri.com>
Hi,

I've been looking over the Actions proposal and find it welcoming. 

A few of us on the Learning Registry team have been considering harmonizing our LR Paradata 1.0 spec (1) with Schema.org and the Actions proposal really is a great step. The Paradata spec is an enhancement of ActivityStrea.ms (2) primarily directed towards Educational Activities. 

However there are two properties I feel are missing from Action. One to specify the object receiving the action, and possibly a target (which I think may be a generalization on the location property)

         Dan (actor) posted (verb)  an article (object) to his blog (target)

Use cases relevant to Learning Registry (and I would suspect LRMI and ActivityStrea.ms as well):

         An Organization (actor) aligned (verb) a CreativeWork (object) to an AlignmentObject (target)

I'd envision mapping:
        actor: performedBy
        verb: name

But not sure how to map object and target properties. 

I recognize that there are 2 potential solutions to this via the proposal:

       A. Thing has an action property, but that seems more appropriate to mark actions that can be performed vs ones that have been executed.

            LR use case: CreativeWork has properties action and alignmentObject. 

       B. Extend Action to be more specific; TargetedAction that includes extended properties, which seems like a good way to fragment the vocabulary though unknown/unexpected properties, unless formally adopted. 

            LR use case: TargetedAction has properties sourceObject and targetObject both of type Thing. 
          
Thus I'd like to propose two possible directions:
     A. an additional property to indicate the receiving object (not quite sure of the name yet) and possibly a relaxation of the currently proposed location property on Action to one that might accept a Thing to accommodate a target. 
     B. an extended class TargetedAction with the additional properties as described above

Thoughts?

Jim Klo 

(1) https://docs.google.com/document/d/1IrOYXd3S0FUwNozaEG5tM7Ki4_AZPrBn-pbyVUz-Bh0/mobilebasic?pli=1

(2) http://activitystrea.ms/specs/json/1.0/

Sent from my iPad

On May 11, 2013, at 4:43 PM, "Dan Brickley" <danbri@google.com> wrote:

> New additions to WebSchemas Wiki from schema.org team
> 
> I've just been updating the WebSchemas Wiki to share some drafts that
> the schema.org team are considering adding to schema.org, as well as
> making a pass over the Wiki to bring it closer to being up-to-date
> w.r.t. schema.org.
> 
> As always http://www.w3.org/wiki/WebSchemas is the front page, with
> proposals listed at
> http://www.w3.org/wiki/WebSchemas/SchemaDotOrgProposals

> 
> Please comment here or in the Wiki; if you reply in email, do change
> the Subject: line to a more specific topic, to help people keep track
> of the discussion.
> 
> There are also a number of longstanding proposals from the wider
> community that are ready to move forward. Working through the backlog,
> I'll next address TV/Radio, and then historical-data. I have also been
> revisiting the issues list hence the WorkersUnion thread. The next
> step you can expect to see is more formal RDFS/RDFa schemas for the
> various proposals, and some experimental test builds of the site so we
> can see how various of these drafts look when integrated together.
> 
> The new and updated materials from schema.org team:
> 
> 1. The most technically complex is "Actions in Schema.org". This is an
> initiative to bring a notion of "verb" to schema.org. It has a lot of
> potential; please take a  look. The page at
> http://www.w3.org/wiki/WebSchemas/ActivityActions links to the earlier
> design proposals, and to the proposal in PDF form:
> http://www.w3.org/wiki/images/3/38/ActionsinSchema.org2013-05-11.pdf

> 
> This new draft takes a slightly different approach than the "Minimal
> draft" circulated late last year; in particular it is a lot more
> explicit in talking about usage scenarios. This should make it less
> cryptic to read! In particular, it is interesting as it explores uses
> of schema.org that go beyond simple public Web pages.
> 
> 2. "Orders in Schema.org"
> http://www.w3.org/wiki/WebSchemas/OrdersSchema

> "While schema.org already supports marking up offers to sell products
> (pre-transaction), it does not currently provide schema for the common
> kinds of confirmations and notifications around orders
> (post-transaction)".
> PDF: http://www.w3.org/wiki/images/d/d4/Schema.org_Orders_Proposal_2013-04-19.pdf

> 
> 3. "Reservations in Schema.org"
> This proposal includes new types for describing reservations and tickets
> ""This proposal includes new types for describing reservations and
> tickets. A generalized Reservation type described, as well as
> sub­types for flight, train, bus, car, restaurant, event and hotel
> reservations. An additional type ReservationPackage is also proposed,
> which should be used to group complex reservations (e.g. flights with
> multiple legs, itineraries with a flight and a hotel) under a single
> item."
> http://www.w3.org/wiki/WebSchemas/ReservationsSchema

> PDF: http://www.w3.org/wiki/images/7/74/Schema.orgReservationsProposalMay2013.pdf

> 
> 4. EmailMessage
> A simple additional type, subtype of CreativeWork and corresponding to
> the existing type WebPage.
> 
> 5. Events (revised proposal for update)
> This is an improved version of a proposal from last year. The previous
> version's design for recurring events was flawed; see
> http://www.w3.org/wiki/WebSchemas/EventSchemaUpdate for a new design.
> PDF: http://www.w3.org/wiki/images/d/db/Events-proposalforupdatedschemav2.pdf

> 
> 
> 
> Alongside the above proposals from the schema.org team, can I also
> draw your attention in particular to some other items in
> http://www.w3.org/wiki/WebSchemas/SchemaDotOrgProposals:

> 
> 6. WorkersUnion
> http://www.w3.org/wiki/WebSchemas/WorkersUnionSchema

> I believe this design from last week's WebSchemas discussion addresses
> http://www.w3.org/2011/webschema/track/issues/17 and I'll recommend
> that schema.org adopt it immediately. Any final tweaks?
> 
> 7. Accessibility proposal
> http://www.w3.org/wiki/WebSchemas/Accessibility

> This is a substantive proposal on an important topic; please take a look.
> 
> 8. sameThingAs
> http://www.w3.org/wiki/WebSchemas/sameThingAs

> This proposal (from various offline converations) seems ready for
> adoption and potentially very useful in helping defragment schema.org
> data. The semantics are essentially those of owl:sameAs, but modified
> in the sense that schema.org in practice very often involves blurring
> the distinction between identifiers for pages versus identifiers for
> the entities they describe. Therefore giving it a distinct property
> name ('sameThingAs') instead of 'sameAs' should make it easier to talk
> colloquially about it alongside owl:sameAs, without excessive
> confusion.
> 
> I'll recommend schema.org adopts it as 'sameThingAs', but advice on
> naming especially welcomed.
> 
> 9. Citation
> http://www.w3.org/wiki/WebSchemas/CitationPromotion

> This proposal from the http://www.w3.org/community/schemabibex/

> community group seems sensible, practical and easy: allow 'citation'
> to be attached to any CreativeWork.
> Let's do it! Any objections, or final suggestions?
> 
> There are plenty more good candidates for schema.org schemas linked
> from www.w3.org/wiki/WebSchemas/SchemaDotOrgProposals ... thoughts on
> these proposals and their interconnections is always welcome, here or
> in the Wiki.
> 
> cheers,
> 
> Dan
> 


Received on Sunday, 12 May 2013 06:46:10 UTC

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