PTC Creo, formerly known as Pro/ENGINEER is a parametric, integrated 3D CAD/CAM/CAE solution created by Parametric Technology Corporation (PTC). It was the first to market with parametric, feature-based, associative solid modeling software. The application runs on Microsoft Windows platform, and provides solid modeling, assembly modelling and drafting, finite element analysis, direct and parametric modelling, sub-divisional and nurbs surfacing, and NC and tooling functionality for mechanical engineers. It features a suite of 10 applications which work within the same program. Versions for UNIX systems were discontinued after the release of version 4.0, except Solaris on x86-64.The Pro/ENGINEER name was changed to Creo Elements/Pro, also known as Wildfire 5.0 on October 28, 2010, coinciding with PTC’s announcement of Creo, a new design software application suite. Creo Elements/Pro will be discontinued after version 2 in favour of the Creo design suite.[citation needed]Creo Elements/Pro and now Creo Parametric competes in the market with CATIA and Siemens NX.