20 of 365 – Confirmation design principle by John LeMasney via lemasney.com
Confirmation is necessary when you want to remind, warn, or make a user especially aware of the importance of a change or choice that they are about to make. Confirmation can happen in industrial design, such as when you have to confirm your intention to arm a device by lifting a protective flap over a trigger, but we meet it far more often in software, where we are asked if we really want to perform an action. A very simple implementation of confirmation occurs on websites with the JavaScript alert function.
In this illustration, I thought it would be a wonderful thing to have a tool that would simply remove you from all social media presence in an instant. Given all the potential cascading changes to your online identity as a result, you would almost certainly want to have your decision confirmed.
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