|Developer(s)||Siemens PLM Software|
|Stable release||NX 8.5 / September 6, 2012|
|Operating system||Mac OS, Unix-like, Windows XP or later (x86/x64)|
It is used, among other tasks, for:
- Design (parametric and direct solid/surface modelling)
- Engineering analysis (static, dynamic, electro-magnetic, thermal, using the Finite Element Method, and fluid using the finite volume method).
- Manufacturing finished design by using included machining modules.
1969: UNIAPT was released by a software company then called United Computing, UNIAPT was one of the world's first end-user CAM products.
1973: The company purchased the Automated Drafting and Machining (ADAM) software code from MCS in 1973. The code became a foundation for a product called UNI-GRAPHICS, later sold commercially as Unigraphics in 1975.
1976 McDonnell Douglas Aircraft buys Unigraphics.
1981: Unigraphics was released, marking the group's first true 3D modeling hardware and software offering.
1992: Over 21,000 seats of Unigraphics are being used worldwide.
1996: Unigraphics V11.0 is released. Added Industrial Design and Modeling enhancements including Bridge Surface, Curvature Analysis for Curve and Surfaces, Face Blends, Variable Offset Surface, etc. In the area of Assembly Modeling the new capabilities included Component Filters, Faceted Representations, Clearance Analysis between multiple Components, etc. Also this release included a fully integrated Spreadsheet linked to Feature-Based Modeling.
2002 First release of the new "Next Generation" version of Unigraphics and I-deas, called NX. This will eventually bring the functionality and capabilities of both Unigraphics and I-DEAS together into a single consolidated product.
2011 Release of NX8 on October 17-2011
Key Functions 
- Design (Computer aided design)
- Parametric Solid modeling (feature based and direct modeling)
- Freeform surface modelling, Class A surfaces).
- Reverse engineering
- Styling and Computer-aided industrial design
- Engineering drawing (Drafting)
- Product and manufacturing information (PMI)
- Reporting and Analytics, Verification and validation
- Knowledge Reuse including Knowledge-based engineering
- Sheet metal design
- Assembly modelling and Digital mockup
- Routing for Electrical wiring and Mechanical Piping
- Simulation (Computer-aided engineering)
- Manufacturing (Computer-aided manufacturing)
- Numerical control (NC) programming
Supported operating systems and platforms 
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) for lightweight data and Multi-CAD.
See also 
- "NX main page". Siemens.
- Zipper, Stuart (1991-11-11). "See GM, IBM in CAD/CAM fight; after Unigraphics deal". Electronic News.
- Bozdoc, Martian. "1992-1993". The History of CAD, CAD chronology. iMB.
- Yares, Evan (2008-05-21). "Synchronous Technology and Design Freedom".
- "Synchronous Technology". Siemens PLM Software.
- "NX modeling page". Siemens PLM Software.
- England, Derek (2009). "Rapid Design Through Synchronous Modeling". Collaboration & Interoperability. Siemens PLM Software.
- Parrella, Tod. "Reverse Engineering". PLM World 2007. UGS Corp.
- Wong, Kenneth. "HD3D". Desktop Engineering.
- Anderson, Taylor (May 3, 2009). "Automating the Design Validation Process with NX Check-Mate". Desktop Engineering.
- Carrington, Jim. "NX 6 Assembly Modeling Update". PLMWorld 2008.
- Clarke, Charles. "Developments in the CAM software market". tct. Archived from the original on 2011-07-16.
- "Officially Supported platforms page". Siemens PLM Software.
- Dean, Al. "Siemens NX on OS X is a-go-go". MACDESIGN.
- Carrington, Jim. "Working with Multi-CAD Data in NX using JT". PLMWorld 2008. Siemens PLM Software.
- Media related to NX (Unigraphics) screenshots at Wikimedia Commons
- Category:Screenshots of NX (Unigraphics)
- Siemens NX - Q&A : SiemensNX.com (not an official site from Siemens PLM)
- Official website
- NX on YouTube
- Siemens PLM blog