Here are some tips on assessing the impact level of a change.: High: Requires significant attention, time, or action by audience. The effect is highly disruptive to the current state. Medium: Requires focused attention. Impacted audiences will notice this change and failure to address it will result in a loss of adoption or reduced performance. Low: Does not require significant attention. Impacted audiences may notice, but would likely adapt on their own. A failure to adopt would not result in reduced performance.