How does Solid Edge's parametric modeling work?

In Solid Edge, parametric modeling operates by employing dimensions and constraints, which are fundamental to defining the relationships and sizes of the model features. This method allows users to create geometric objects in a way that their sizes and configurations can be easily adjusted by changing the defined parameters.

When you apply a dimension to a feature, such as specifying the length of a line or the diameter of a circle, it creates a relationship that ensures the geometry adheres to these specifications. Additionally, constraints can be used to control how different parts of the model relate to each other, such as maintaining perpendicularity between lines or ensuring circles remain concentric. This interconnectedness allows for efficient design modifications since altering one parameter can automatically adjust the entire model as needed.

This iterative ability to modify dimensions and constraints is what makes parametric modeling powerful, as it enhances design versatility and reduces errors during the modeling process. The other options don't encapsulate the essence of how parametric modeling functions effectively within Solid Edge. Fixed dimensions alone cannot adapt to design changes freely, graphical representations lack the necessary control over dimensions, and managing layers involves organization but does not relate to the actual parametric nature of model creation.