Undo design pattern

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Alternate titles: Multiple Undo, History, Global Undo.

Problem summary

The user wants to revert a mistaken input

Example

▲ After telling your preferences, a new home page is constructed for you at Pinterest. If you do not like the result, you can undo the action.

Usage

Use when you want to provide users with more confidence and willingness to play around
The more costly it is to lose data, the more important it is to provide undo.
Whenever there is an opportunity to lose work, the program should allow undo actions.
Never use a warning when you mean undo.

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Solution

Allow users to easily reverse their own actions

Rationale

Users aren’t perfect – they tend to make mistakes.

Promote safe exploration and playfulness by providing confidence that mistakes aren’t permanent. Multi-level undo lets users incrementally construct and explore work paths quickly and easily. The more costly it is to lose data, the more important it is to provide the opportunity to undo.

Discussion

A great side effect of utilizing the Undo pattern, is that it provides users with more confidence and more willingness to try new and different things. By promoting trial and error, users are able to learn and master your application more quickly.

Sources

¹ Undo Design Pattern at Quince

² Undo Design Pattern at Patternry.com

³ Multi-level Undo Design Pattern by Jenifer Tidwell

⁴ Goodbye Back Button by Michael Zuschlag

⁵ The importance of Undo by Paul Boag

⁶ Never Use a Warning When you Mean Undo by Aza Raskin