NX, formerly known as "Unigraphics", is an advanced high-end CAD/CAM/CAE, which has been owned since 2007 by Siemens Digital Industries Software.

1973: The company purchases the Automated Drafting and Machining (ADAM) software code from MCS in 1973.

1983: UniSolids V1.0 is released, marking the industry's first true interactive Solid Modeling software offering.

A fully integrated Spreadsheet linked to Feature-Based Modeling is also included.. 2002: First release of the new "Next Generation" version of Unigraphics and I-DEAS, called NX, beginning the transition to bring the functionality and capabilities of both Unigraphics and I-DEAS together into a single consolidated product.

[19] NX uses Parasolid for its geometric modeling kernel and D-Cubed as associative engine for sketcher and assembly constraints as well as using JT (visualization format)[37] for lightweight data and Multi-CAD.