What exactly is solidworks software?

"SolidWorks software is the world's first 3D CAD system based on Windows, and it is an easy-to-learn and easy-to-use design tool based on features, parameterization and solid modeling.

You can create a completely related three-dimensional entity model, with or without constraints between entities;

You can also use automatic or user-defined constraints to reflect design intent.

A sacrifice made directly on a physical model. Such as fillet, chamfer, pattern, mirror image, etc.