Similar, but not the same.
Land Desktop and Civil 3D Description Keys are used to sort inserted points onto layers, insert symbols and do various other point-related tasks based on a point’s raw description. There are separate routines in the programs for creating automatic linework that connects points using additional field-coding.
Carlson combines all of that functionality into the Field to Finish routine. Whether you need to sort points to layers, insert symbols or create automatic linework based on field-coding, Field to Finish manages it all.