Actions in Schema.org - Potential vs Performed Actions

Jim, your raised the issed that "potential" actions and "performed" actions
on a Thing are hard to distinguish.

The proposal suggests using the Action.status property just for that, and
specifies that the Thing.action should be for "potential" actions only. You
are right however that the status might be omitted and the action property
misused, leading to ambiguity.

I think that one simple solution for that would be to have instead two
properties on Thing:
 * Thing.potentialAction (or tentativeAction, to match with the
corresponding ActionStatus value) - an action that can be potentially
performed on the Thing. Repeated values will mean that multiple actions are
supported.
 * Thing.performedAction - an action that was performed on the Thing in the
past. Repeated values will form an "activity stream" for the Thing.

What do you think?

-Yaar