W3C home > Mailing lists > Public > public-vocabs@w3.org > April 2012

Re: proposal for new classes Activity and Action

From: Bob Ferris <zazi@smiy.org>
Date: Thu, 19 Apr 2012 09:50:23 +0200
Message-ID: <4F8FC3BF.4090801@smiy.org>
To: public-vocabs@w3.org
Hi Daniel,

I really like your proposal - it looks really well thought through. I 
co-developed a similar Semantic Web ontology called the Counter Ontology 
[1] some time ago that can be slightly utilised together with the Event 
Ontology [2]. So you may also have a look at these ontologies (if you 
are not already aware of them ;) ) to get further inspiration for your 
schema.org extension proposal.



[1] http://purl.org/ontology/co/core#
[2] http://purl.org/NET/c4dm/event.owl#

On 04/19/2012 04:05 AM, Daniel Dulitz wrote:
> Hello,
> The three of us (Will, Jason, and I) have an idea for improving
> schema.org <http://schema.org>'s representation of activities, and we'd
> like to start a discussion about the merits of our proposal. We've tried
> to adopt some of the core insights of ActivityStreams while remaining
> compatible with the (many) "implied activities" that can be drawn from
> schema.org <http://schema.org> items in general.
> The proposal may be found at
> https://docs.google.com/document/d/1VYZ9FmN7Vl2PzzR1kX3KZgfdPK-qUfxR3z12NC3i5V0/edit
> . Comments are turned off on the document so the discussion will be on
> this list.
>  From the top of the document:
> """
> Historically (in earlier schema.org <http://schema.org> versions), the
> http://schema.org/UserInteraction type was focused on reporting
> aggregate interaction counts, despite being a subclass of Event. Over
> time it has shifted more to representing individual interactions. This
> transition has not been smooth; the original intent is still reflected
> in Example 1 for UserInteraction, which uses subtype names as part of a
> structured text interactionCount. It is also reflected in the names of
> the UserInteraction subtypes, which are plural, as well as the
> duplication between Comment/text and UserComments/commentText.
> UserInteraction subclasses UserComments, UserCheckins, and UserTweets,
> when interpreted as individual interactions, contain creative content
> that would benefit from many of the properties of CreativeWork. Other
> subtypes of CreativeWork, such as Review, lack corresponding subtypes of
> UserInteraction. AggregateRating has its own type, while other types
> lack corresponding types to represent aggregates.
> To resolve this tension, this proposal:
>   * creates a new type, Activity, to represent a single activity, with
>     consistent properties (across all activity instances) to structure
>     the grammar of the activity;
>   * creates a new type, Action, with subtypes that describe classes of
>     “verbs” within the grammar;
>   * creates a new type, AggregateActivity, to represent an aggregation
>     of activities e.g. in CreativeWork/interactionCount;
>   * adds a new property Thing/action to indicate an action that may be
>     performed on a thing; and
>   * deprecates UserInteraction and its subclasses, and AggregateRating,
>     in favor of the new types.
> """
> Looking forward to your thoughts,
> d
Received on Thursday, 19 April 2012 07:51:05 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 17:48:45 UTC