When a node is edited (getting a new revision)

... all annotate_ym nodes made to that node will become useless unless the node gets a new revistion. But by implementing this new revision what should happen to annotations belonging to that older revision. At least the should be viewable. So one can review the old node and process the 'old' annotations.

Some workflow must be designed. Ie when an annotation gets 'processed' by the node editor it should change state.

Will it be enough to add a field 'state' to annotate_ym node? And list all open/closed/?/? annotate_ym nodes?

Or should the 'workflow' part be handled by ie workflow_ng state?