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> Nielsen H5 Error Prevention My List ♥ ()

Nielsen H5 Error Prevention ♥ ♡

Does the page prevent problems from happening in the first place? On pages with forms or user actions, look for clear labels, sensible defaults, required-field marking, and confirmation for destructive actions. Does not apply to purely informational pages.
General Usefulness: ★ ★
Traditional Ease of Automation: ⚙
Depends on: Nielsen H5 Error Prevention Score (LLM)
⚠ Gotchas ⚠

On pure content pages this is n/a, not 0 — the heuristic does not apply when there is nothing for the user to do. n/a pages are skipped in the overall average rather than penalized.
In Content Chimera

Carries through the language model's 0-3 rating for Error Prevention. Informational pages without any form or interactive process are marked n/a rather than scored.