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Published 20 hours ago • verified publisher icon w3c

What to use if type property is allready used to describe something else related to object

Open ilmartyrk opened this issue 8 years ago • 1 comments

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Please Describe the Issue:

As I read from the standard, object property type should indicate to the classname of this current object and @type to the URI of the definition of this object. But what would be the proper usecase if property type is already used to describe something else related to this object and there is no URI to refer to?

ilmartyrk avatar Nov 30 '17 11:11 ilmartyrk

I believe ActivityStreams does not define/depend on @type.

JSON-LD does. And AS says, if you want to be doing JSON-LD processing, you can treat type and @type the same.

I think if you had a type and @type on the same object, but with different values, from AS2 perspective type would be authoritative. @type would be meaningless/unused as its not in AS2.

JSON-LD processors really won't like that AS2, though. However, AS2 does not 'require' supporting JSON-LD.

gobengo avatar Jan 25 '18 00:01 gobengo

There are three main options when there is a vocabulary conflict with AS2:

  1. Use namespace prefixes
  2. Define the term in the document context
  3. Use an alias

I documented these processes in the Activity Streams 2.0 Primer, here:

https://www.w3.org/wiki/Activity_Streams/Primer/Vocabulary_conflicts

Given that the question is answered, I'm closing this issue.

evanp avatar May 10 '23 16:05 evanp