NURBS is not a new term. It is an acronym for "Non-Uniform Rational B Spline" and is basically an accurate way to define a free-form curve. CAD-CAM systems have used NURBS for many years to define curves.
Implementing an integrated tooling system proved to be this mold shop's first step toward automated operation of its electrical discharge machines and graphite mills. Today, the shop's robotic cells can run around the clock in an unattended mode.
The whole industry seems to be discussing this topic. Here’s what Modern Machine Shop has to say about "Interpolating Curves".