This document summarizes a course presentation on helping users recognize, diagnose, and recover from errors. The presentation discusses informing users when an error occurs, telling them what went wrong, and offering a solution. Specific techniques are described, such as using plain language in error messages to precisely indicate the problem and constructively suggest a solution. Examples are provided for each of the three ways to address errors.

1. Department of Computer Science and Engineering
Course Title: Human Computer Interaction
Course Code: CSE 321
Presentation on: 9# Help users recognize,
diagnose and recover from error

2. Content
• Introduction.
• Inform users when an error has occurred.
• Tell users what went wrong.
• Offer user a solution.

3. Introduction
 Help users recognize, diagnose and recover from error
Error messages should be expressed in plain language (no codes),
precisely indicate the problem, and constructively suggest a solution.
Its solved by Three ways-
• Inform users when an error has occurred.
• Tell users what went wrong.
• Offer user a solution.

4. Inform users when an error has occurred-
• One of the simplest ways to do this is with an
error message . Depending on the context, might
combine the messaging with a visual treatment
like red text or a wrong sign.

5. • For Example:-

6. Tell users what went wrong-
• We need to tell users what the problem is. It’s
important to use plain language at this step.

7. Offer user a solution:-
• That might mean providing concise instruction for
how to correct the problem. But the best thing to
do in offer a shortcut in the error messaging not
just instruction for how to go fix the problem in
the UI, but something that they can click or tap
right now to solve the problem.

8. For example:-

9. Conclusion
• Help users recognize ,diagnose and recover from
error is one of the Nielsen’s Heuristics. It solves
user problem in the ways mentioned above.