At Joomla backend article management; write and update an article, one tab is Schema. It relates to Schema.org. First type of schema can be selected, then values can be inserted or edited for the chosen schema type.

This Schema tab is not available at Joomla frontend as far as can find. Refer also to Joomla forum thread where I have asked this question: Schema.org forms at frontend article management?

My proposal for enhancement is to add Schema.org at frontend article management.