Hybrid Modeling
Hybrid modeling refers to CAD architectures that allow a single part or assembly to mix parametric history-based authoring with direct geometry edits, ideally without forcing the user to convert between the two styles. CATIA V5 with the CGM kernel (1999), Siemens Synchronous Technology on Parasolid (2008), and PTC's Flexible Modeling Extension on Granite (2009–2011) are the three landmark implementations. Onshape and Convergent Modeling pushed hybrid into cloud-native and facet-aware territory after 2019.
Why it matters
Hybrid is the architecture that decides whether engineers can move legacy geometry, supplier data, and quick concept work through the same authoring environment as their controlled parametric assemblies. A kernel that does hybrid badly forces dual-tool workflows; one that does it well removes the ceremony around moving a part between concept and release. Modern MCAD evaluations are largely arguments about whose hybrid story is least leaky.
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Cite this definition
Finocchiaro, Michael. “Hybrid Modeling.” DemystifyingPLM PLM Glossary, 2026, https://www.demystifyingplm.com/glossary/hybrid-modeling