9. Error handling


  • Does the system help users to detect, diagnose and correct errors?
  • Are error messages in simple language, do they clearly describe the problem and offer solutions?

Which areas are affected?

All content and processes that are prone to errors and how to deal with them.

What to look for?

Every error is displayed, explained in a user-friendly way and there is a concrete offer for solutions.


  • 404 pages
  • External data not available.
  • Incorrect input in forms

Deepen knowledge​

The Nielsen Norman Group offers a wealth of excellent videos on YouTube that explain all areas of UX briefly and concisely: YouTube-Channel Nielsen Norman Group.