That looks like it will work, but the reason for using a notifier is you only need one of them. Unlike with a queue, the notification stays in the notifier, so you can send one notification to mulitple locations. I would think you could combine the two in your image. You may still want the queue for logging, if you need to log every single change - with a notifier you could miss a notification, because any new notification replaces the previous one.
