When you use CAD programs, you typically create a part once but edit it many times. Design for change, also known as design intent, is at the core of most of the modeling work that you will do in SolidWorks.
This chapter starts with some very basic editing concepts, which you may already have picked up if you have been reading this book from the beginning. It also contains a summary of best practice techniques for modeling parts and a set of model evaluation tools that can help you evaluate parts. I placed these evaluation tools in a chapter devoted to editing because the create-evaluate-edit-evaluate cycle is one of the most familiar in modeling and design practice.