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DFMEA

Predicted failure modes with a live RPN and Action-Priority.

DFMEA

What it's for​

A master-detail DFMEA on the AIAG-VDA chain: a systems tree (System → Function → Failure Mode → per-cause Risk) on the left, a detail panel on the right. RPN = Severity × Occurrence × Detection is computed live, an Action-Priority (AP) badge gives the consequence-first decision, and an Expected (post-action) RPN shows the risk reduction you will get.

When to use it​

Any regulated-industry design review; required evidence for ISO 26262 / ISO 14971 / aerospace.

How it works​

  1. Generate from a prompt, or derive from the node’s functional requirements. → The systems tree fills; each node shows a child count and an RPN colour dot.
  2. Select a Failure Mode; set Severity, then Occurrence & Detection per cause (1–10 selects). → RPN recomputes live and rows colour by threshold — red ≥ 200, orange ≥ 100, yellow ≥ 50, green below — with an AP badge (High/Medium/Low) alongside.
  3. Flag product-safety-critical failure modes and record actions. → The safety-critical checkbox (human-set) routes High-AP safety items to the risk process; per-cause actions carry a status and effectiveness.
  4. Fill the post-action ratings. → An “Expected RPN” banner shows the projected value and delta vs current (−N), so you can prove the mitigation earns its keep.
  5. Toggle Sort by RPN and Export. → Freezes the tree in RPN order; export to PDF, stamped PDF, CSV (AIAG worksheet, one row per cause), TXT or JSON.

Mechanics​

  • Master-detail systems tree (System → Function → Failure Mode → cause)
  • RPN = S×O×D live · thresholds red≥200 / orange≥100 / yellow≥50 / green<50
  • Action-Priority (AP) badge · Expected (post-action) RPN + delta
  • Product-safety-critical flag · action status & effectiveness
  • Sort-by-RPN · follow-on edit · revisions · review
  • Export: PDF · stamped PDF · CSV (AIAG) · TXT · JSON

Open DFMEA in the app