How does 3D modeling support rapid iteration and testing?

3D modeling supports rapid iteration and testing by enabling quick digital modifications and virtual simulations, accelerating product development cycles. It allows designers to adjust parameters like size, material, or structure in software instantly, avoiding delays from physical prototyping. Virtual simulations test functionality, durability, or appearance digitally, identifying issues early without manufacturing. This reduces reliance on physical models, cutting production time and material costs for faster, more agile iterations. By integrating these steps, 3D modeling streamlines iteration and testing, making it vital for agile development.