
https://www.kayak.com/














Help users recognize, diagnose, and recover from errorsError messages should be expressed in plain language (no codes), precisely indicate the problem, and constructively suggest a solution.
https://www.nngroup.com/articles/ten-usability-heuristics/

Help users recognize, diagnose, and recover from errorsError messages should be expressed in plain language (no codes), precisely indicate the problem, and constructively suggest a solution.
https://www.nngroup.com/articles/ten-usability-heuristics/


