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