There was a time when product manufacturers had to rely solely on 2D drawings and documentation during the design process. This often resulted in product data becoming inconsistent as it travelled from department to department.
Bad design choices can lead companies to waste both time and money. Even good choices that take a little too long to come out of the design process can lead to costly delays.
Design intent of a CAD model and the logic behind specific design decisions are often documented in numerous locations, including paper notebooks, emails and Excel spreadsheets. But, since this documentation is disconnected from the CAD model, it can easily be lost over time.