nielsen

The interface should always tell the user what is going on, through timely and appropriate feedback.

HEUR·001Heuristic · Nielsen heuristics

Use the words, concepts and order that your users already have, not the ones your database has.

HEUR·002Heuristic · Nielsen heuristics

Users make mistakes and change their minds, so every state needs a clearly marked way out.

HEUR·003Heuristic · Nielsen heuristics

The same thing should look and behave the same way everywhere, and follow platform convention where one exists.

HEUR·004Heuristic · Nielsen heuristics

Better than a good error message is a design in which the error cannot occur.

HEUR·005Heuristic · Nielsen heuristics

Recognising something on screen is far easier than remembering it, so keep the information visible.

HEUR·006Heuristic · Nielsen heuristics

Accelerators that experts use and novices ignore let one interface serve both populations.

HEUR·007Heuristic · Nielsen heuristics

Every extra element competes with the ones that matter, so content should earn its place on the screen.

HEUR·008Heuristic · Nielsen heuristics

Error messages should say what happened, why, and what to do next, in plain language.

HEUR·009Heuristic · Nielsen heuristics

Aim for a product that needs no explanation, then write help for the cases where that is impossible.

HEUR·010Heuristic · Nielsen heuristics