NUDD Assessment

Score what is New, Unique, Different, and Difficult — then focus engineering effort where uncertainty and opportunity are highest.

Select which dimensions apply to a feature, then set each one's severity: 0 = None · 1 = Low · 2 = Moderate · 3 = High

Feature & Function

Feature or FunctionDimensionsNUDD ScoreNUDD LevelJustification or EvidenceActions
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NUDD Question Matrix

Reference guide. In the table above, select which dimensions apply to a feature, then set each one's severity from 0 (none) to 3 (high).

New

  • Has this technology or function been used in our products before?
  • Is it proven in the intended environment and application?

Unique

  • Is this solution specific to this design, customer, or use case?
  • Are comparable references, benchmarks, standards, or field data limited?

Different

  • Does it depart from the current architecture, design practice, material, supplier, or process?
  • Could it introduce unfamiliar interfaces, interactions, loads, or failure modes?

Difficult

  • Does it require unresolved technical learning or a breakthrough?
  • Will design, verification, manufacturing, integration, or scaling be unusually challenging?

Assessment Summary

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How to use this

Run this assessment during concept selection, design reviews, or DRBFM/change-point discussions to decide where DFMEA and test-strategy effort should concentrate. For each feature or function, select which NUDD dimensions apply, then rate each selected dimension's severity from 0 to 3 in the table; use the question matrix below it as a guide. Dimensions left unselected count as 0. Items scored Medium or High require a documented justification or evidence gap; Low items do not.

Example: a feature that introduces a new sensor architecture with limited field data and an unresolved integration question will score High and surface at the top of the summary — even if most other features in the same product are Low or Medium.

Related reading: What is a NUDD assessment?