The electrical wiring rough-in process is performed while the walls are bare and no insulation has been installed.   Each circuit, be it for lights, light switches or outlets, is routed throughout the house’s frame through a series of holes drilled in the 2x4s and joists.  This is the part of the process that you may want to double check that the outlets, light boxes, switches and canned lights are in the correct place, as moving them after drywall is considerably costly and time consuming.  Our electrical contractor from Ryland Homes was courteous enough to meet with me before they began installation to re-affirm where I wanted some of the optional outlets and lighting in the home.  

The Wiring, for all intents and purposes are run in what appears to be a hap-hazard fashion, as the electricians will run direct wire pathways to each location with little regard for routing or aesthetics.  All of these wires will be covered by the drywall so it is of little concern.  It is advisable to take some photographs of the wiring for future reference.