I think what you're talking about is the just a profile so the panel has a spot to go. Its all done with a machine, so zero skill involved. Basically I made doors and mitred and glued them together to make up the "box" part.

Dovetails are a mechanical joint heralding from the days when you had to cut off Bessie's hooves to make glue. Glue from way back when sucks, and when the glue fails you still have a joint that'll hold tight. When done correctly, glue isn't really all that neccessary. The flip side is that glue has gotten so good that dovetails should be obsolete, but the process has gotten so cheap that its more popular than ever.

The joint in the corner of these draweres are dovetailed: