Heuristic Rule 03 - Mail Apps

Heuristics Rule Number 3
“User Control and Freedom”
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What does it mean?

When users make mistakes they should be equipped with tools and actions that allow them to revert back to previous states; as a designer you should support undo and redo.
Always design a clearly marked 'emergency exit' to let the user leave the unwanted state without having to go through an extended dialogue.

All highlighted interfaces on this post is how this rule is implemented in interface design.

When conducting a Heuristic Evaluation on interface design that is intended to find usability problems at heuristic point 3, User Control and Freedom.

I usually make a question like the following:

1. Is the user able to exit all states, such as pop-ups and multimedia? Is the exit state consistent and clear?

2. Does the user have control over their personal information?
3. Is the user able to use the core of the website or apps without signing up?

Feel free for leaving your comments, constructive feedback is welcome. 🙏

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