Understanding beam and slab in the plan in autocad

When we make plan in the autocad lets say of ground floor, and lets say we have a steel structure up from the ground floor, do we draw slab of slab that we walk or that we see in the ceiling and about the beam do we draw steel beam that we see in the ceiling or R.C.C beam underneath the slab that we walk in?
 
When we make plan in the autocad lets say of ground floor, and lets say we have a steel structure up from the ground floor, do we draw slab of slab that we walk or that we see in the ceiling and about the beam do we draw steel beam that we see in the ceiling or R.C.C beam underneath the slab that we walk in?
Hi. There are many types of plans that is required to be made for proper execution. You can distinguish them into architectural, structural, GFC, MEP, etc. The more layers you show in your drawings, the more clarity it gives in the execution. Let's say you have prepared an architectural plan that shows various rooms, passages, lifts, staircases, etc. showing the sizes, and positions of windows, doors and other openings. You will be required to draw more details on layers like showing the column and beams and the slab panels. The one you show is the floor slab of that floor. Likewise, beams need to be shown in the dotted / hidden layers and likewise.