- From: ☮ elf Pavlik ☮ <perpetual-tripper@wwelves.org>
- Date: Tue, 14 Oct 2014 16:04:12 +0200
- To: Sam Goto <goto@google.com>
- CC: "public-vocabs@w3.org Vocabs" <public-vocabs@w3.org>, danbri@google.com
On 10/13/2014 06:53 PM, ☮ elf Pavlik ☮ wrote: > On 10/13/2014 06:19 PM, Sam Goto wrote: >> >> >> On Mon, Oct 13, 2014 at 9:07 AM, ☮ elf Pavlik ☮ >> <perpetual-tripper@wwelves.org <mailto:perpetual-tripper@wwelves.org>> >> wrote: >> >> Hi, >> >> Based on discussions in Social WG around ActivityStreams2.0 I would like >> to ask for help with clarifying something about schema.org >> <http://schema.org> Action >> subtree design. In particular how to recognize subtypes of schema:Action >> defined outside of schema.org <http://schema.org> . >> >> >> Would the basic schema.org extension mechanism >> <http://schema.org/docs/extension.html> suffice here? >> >> That is, something like http://schema.org/InteractAction/HugAction work? > > I remember hearing about this Extension Mechanism based on / as 'old' > and not strongly encouraged (maybe just rumors?). Do you know of real > world examples where someone uses it? > > To my understanding this approach violates URI Opacity[1] and doesn't > allow dereferencing terms 'extended' in such way. > > Looking at examples like http://bibliograph.net they extend schema.org > types in their own namespace. I recommend recent slidedeck[2] by Richard > Wallis > eg. bgn:Thesis, http://bibliograph.net/Thesis > > [1] http://www.w3.org/TR/webarch/#uri-opacity > [2] http://www.slideshare.net/rjw/extending-schemaorg > I think assigning multiple types which include parent type from schema.org could give similar result without mentioned issues related to / extension mechanism. { "@context": ["http://schema.org", { "ex": "http://example.net/#" }] "@type": ["Action", "ex:HugAction"], "actionStatus": "CompletedActionStatus", "agent" : { "@type": "Person", "name": "Alice" }, "object" : { "@type": "Person", "name": "Bob" }, "startTime" : "2014-03-01" }
Received on Tuesday, 14 October 2014 14:06:27 UTC