Product for Designers

Decision Cards

Make interface decisions you can defend in any design review.

Flow & continuity

Undo or Confirm

Can it be undone, and how often does it happen?

Use Undo when

The action is frequent and reversible. Do it instantly and offer a way back for a few seconds.

Signs it fits

  • Archive, move, mark as done
  • Happens many times a day
  • Can genuinely be reversed
  • A trash or soft delete exists

Use Confirm when

The action is rare and permanent. Slow people down once, and say exactly what will happen on the button.

Signs it fits

  • Permanent deletion
  • Affects other people or money
  • Rare enough to actually be read
  • The button names the outcome, never OK
Flow & continuity
The rule

Prefer undo to confirmation. Confirm only what can’t be undone, and name the consequence in the button.

From the lesson “Confirmation & consequence”

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9 of 42 cards

Product for Designers · Q1 2027

Learn to make these calls on your own.

These cards are the first of many. The course teaches the reasoning behind each one, with practice rounds and teardowns of real products.

Get new cards as they’re released, and early-bird pricing at launch.