The change curve is useful as an overview of how employees will respond, but as each change project is unique, there is no template for the development of the message and its communication.
Before you try to obtain resources for “audience-invasive” evaluation techniques like focus groups and surveys, try some of the following no-cost, no-permission-needed measurements.
It never fails. You come up with an idea guaranteed to improve communication. You write it up and give it to your boss. The idea either dies immediately or is sent to higher management to die more slowly.