walk-through
n 1: a thorough explanation (usually accompanied by a
demonstration) of each step in a procedure or process; "she
gave me a walk-through of my new duties"
2: a pedestrian passageway through the ground floor of a
building
3: a first perfunctory rehearsal of a theatrical production in
which actors read their lines from the script and move as
directed
4: the act of walking in order to view something; "the realtor
took her on a walk-through of the apartment"