Why Modal Dialogs Should Have 4 States
Improving user decision-making
A modal dialog is more than just a confirmation message. It’s an intermediary to help guide users toward the most appropriate action. However, displaying modal dialogs as single-state components doesn’t help users make the right decision. Unfortunately, you’re probably making this mistake on your interface.
Most designers will display every modal dialog the same way. It’ll have a confirmation message with a couple of buttons contained in a floating box. The problem with this approach is that not every message has the same severity. It’s necessary to indicate these differences in the design so users never take the wrong action.

