From W3C Wiki

This page is about the "Discussion" proposal for schema.org. The proposal is in a PDF; see attached file.

Discussion schema.org proposal (Charlie Jiang)

This proposal is a collaborative work towards a schema for internet social discussion forums. It defines a use of several properties of Thing, CreativeWork, and Article for use with a discussion thread and posts. It defines a class Discussion with seven properties.

Proposal PDF: File:Schema.org Discussion v2.7.pdf

SIOC alignment proposal

SIOC is a schema for describing social web content (posts, comments, forums, blogs, etc.). The schema has been in development for eight years and is currently used by Drupal 7 along and various other applications/sites to describe forums, blogs, microblogs, etc. We would like to discuss how to align SIOC with schema.org in respect of this Discussion proposal.