This is a post by Beth Stackpole on PTC site.
Most engineers are living in a 3D world. The CAD models they build as part of the design process are 3D as are the simulations that prove out those concepts and the realistic prototypes output with, you guessed it, 3D printers working off the same 3D data.
Yet outside of engineering—in manufacturing departments, throughout the supply chain, even within service—the 3D model has yet to become the holy grail. In fact, it’s more likely that 2D drawings are the go-to resource for information about a particular product design. As a result, organizations are not poised to capitalize on the myriad benefits of the Model-Based Enterprise, a vision for a collaborative environment with a 3D product definition as the definitive information resource for activities spanning a product’s complete lifecycle.