Parametric modeling is a method used in computer-aided design (CAD) and computer-aided engineering (CAE) software to create 3D models of objects or structures based on a set of defined parameters. These parameters can be adjusted to easily modify the design of the object without having to redesign it from scratch. Parametric modeling allows for faster design iterations, greater flexibility, and improved efficiency in the design process. This approach is commonly used in various industries such as architecture, engineering, and product design.