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design:error_messages [2021/02/02 15:41] 10.91.120.28design:error_messages [2021/06/25 10:09] (current) – external edit 127.0.0.1
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 +====== How To Write Effective Error Messages ======
 +
 +===== Error Messages Should Be Clearly Visible =====
 +
 +  * If a user makes a mistake i.e. an error occurs, they should get feedback on screen informing them of this.
 +    * A good example of this is saying in an email that you'll attach a file but don't.
 +    * Gmail now reminds you of this before you hit send.
 +  * The error message should visually stand out on the screen - ensure contrast
 +    * Try to use a different color to the rest of your color palette.
 +  * Never just rely on color to convey a message to ensure accessibility for people with color-blindness.
 +    * Use icons and other UI elements in addition to color.
 +
 +===== Error Messages Should Have Human Readable Text Without Code Or Jargon =====
 +
 +  * Don't use the default code output as an error message as this will be very hard to decipher for the user.
 +  * This type of detail belongs in the logs.
 +
 +===== Error Messages Should Be Polite In Tone =====
 +
 +  * Don't use terminology that blames the user for making a mistake
 +  * Avoid:
 +    * "you did.."
 +    * "your action caused.."
 +    * "you have entered the incorrect information"
 +    * upper case and ! at the end of a sentence - it seems like you're shouting at the user!
 +  * Blaming the user is only going to cause more frustration
 +    * Don't see the user as the problem.
 +    * We cannot know how every type of user will interact with what we design so errors are bound to occur.
 +
 +===== Error Messages Should Have Helpful Text =====
 +
 +  * You need to tell the user:
 +    * What happened
 +    * Why it happened
 +    * what the user can do to resolve the issue
 +  * Guide the user on how they can fix the error.
 +  * If possible, determine what the correction action is a and let users pick from a small list.
 +  * Users should be able to understand what error message buttons (delete, cancel) do by simply reading their labels.
 +    * You shouldn't need to explain what the buttons do
 +
 +===== Error Messages Should Be Short And To The Point =====
 +
 +  * Most users will scan a page to find exactly what they're looking for rather than reading everything individually.
 +    * As a result, the more text on screen, the harder it is to scan, and the less likely it is for the user to read the error message.
 +    * Remove any unnecessary detail.
 +  * Use progressive disclosure to provide information on how to troubleshoot a problem if it's required.
 +    * Don't put all of this in the error message box.
 +
 +===== Make Sure You Preserve The User's Work =====
 +
 +  * When a user is interrupted to deal with an error, it stops their flow and prevents them from completing their task.
 +    * Make it easy to resolve the issue so they can go back to their work.
 +  * Let users correct where they went wrong rather than starting from scratch each time
 +
 +===== Modal Or No Modal? =====
 +
 +When designing an error message ask yourself:
 +
 +//Does the user need to be interrupted to read this message?//
 +
 +If so consider putting the error in a modal.
 +
 +If not, don't use a modal.
 +