One field with some many issues
In the examples below I would like to present how little UX issue may cause some problems and it is worth considering all the aspects of the forms, even the smallest ones.
Handling the error in the form, date format:
This was the mistake and how the error message was handled:
My solutions: 1st. The best UX solution: Use more forgiving format for the birth date, if character / is ﬁne why not dot? The best error handling is error prevention :)
2nd. Write an error message. I didn’t know what is wrong. I had to delete the whole date and check what is your preferred format.
3rd. Using more error indicators than color, in case of your clients are color blind. For instance, use the exclamation mark in the triangle. Below I present how user with color blind see the color as the only error indicator. For color blind user the color difference is reduced from red to grey.
This example shows that for colorblind user the error indicator in gray doesn't send out as much red one.
4th. Don't indicate the mistake immediately the user starts ﬁlling the form in order to not cause anxiety.
Please let me finish typing before you state the mistake: