Which modeling approach allows for modifications based on geometric definitions during the design process?

Parametric modeling is the approach that allows for modifications based on geometric definitions during the design process. In this modeling paradigm, the geometric and dimensional parameters are established as relationships or constraints, which means that any changes made to one parameter can automatically adjust related geometry. This capability is particularly beneficial during the iterative design process, as designers can quickly adapt their models by simply altering the parameters without needing to start from scratch.

The strength of parametric modeling lies in its ability to capture the intent of the design. It provides a structural framework that enhances design flexibility, allowing for quick updates and adjustments that maintain design integrity. This is essential in environments where refined details are critical, and alterations are frequent, ensuring efficiency and improved accuracy in the modeling process.

The other approaches, such as direct modeling, feature-based modeling, and constraint-based modeling, have their own strengths but do not fully encompass the dynamic ability to modify geometric definitions as parametrically as parametric modeling does. Direct modeling allows users to push and pull geometry without constraints, but it lacks the defined relationships that parametric modeling has. Feature-based modeling focuses on the use of predefined shapes and operations but isn't inherently dynamic in terms of parametric changes. Constraint-based modeling emphasizes the relationships between geometric entities but does not necessarily provide