Synchronous Technology
Synchronous Technology is the Siemens-developed hybrid-modeling layer introduced with Solid Edge ST1 in 2008 and rolled into NX 7 shortly after. It combines a constraint solver and feature-recognition engine with the Parasolid kernel's direct-edit primitives so a user can apply a face-level edit without bypassing parametric design intent. The feature is the canonical example of "direct edits inside a parametric system" implemented at the kernel layer rather than bolted on at the UI.
Why it matters
Synchronous Technology was the proof point that hybrid modeling did not have to be a worse parametric and a worse direct experience smashed together. By implementing it inside Parasolid, Siemens forced every other major MCAD vendor — including Dassault and PTC — to ship their own hybrid story or concede the productivity ground to NX and Solid Edge. It also made Parasolid more attractive as a third-party kernel license, which kept the geometry-kernel market structure intact.
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Cite this definition
Finocchiaro, Michael. “Synchronous Technology.” DemystifyingPLM PLM Glossary, 2026, https://www.demystifyingplm.com/glossary/synchronous-technology