Parametric Modeling
A CAD paradigm in which a sequential feature tree (sketches, extrusions, fillets, Boolean cuts) is stored as editable, ordered steps. Dimensions drive geometry: change a dimension and the downstream model updates automatically. SolidWorks, Creo, CATIA, and NX are the canonical parametric MCAD systems.
Why it matters
The feature tree is an audit trail — a communication tool between design and manufacturing. It is what PDM and PLM systems version-control, and what regulatory agencies expect for Design History File (DHF) integrity in medical and aerospace.
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External References
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Cite this definition
Finocchiaro, Michael. “Parametric Modeling.” DemystifyingPLM PLM Glossary, 2026, https://www.demystifyingplm.com/glossary/parametric-modeling