Design WLAN networks for 25dB SNR(Signal to Noise) and ensure primary and secondary RSSI coverage of -67dBm or less.
Trunk to AP(Access Point) ports and tag SSIDs. Use 802.1X when feasible to be fully supported. Design for both horizontal and vertical subnets to cover tenancies and any required uninterrupted roaming.
Design around and minimize CCI / ACI (Co-channel Interference / Adjacent Channel Interference)
Building/campus size and network design will determine the distribution and volume of cabling and network domains/zones.
Each comms room or IT space will require very specific working dimensions for installation, maintenance, HVAC(Heating Ventilation Air Conditioning), power / UPS, and associated cable runs.
Albeit your core data MDF(Main Distribution Frame) is often central, the telecommunications MPOE(Main Point of Entry) also factors in to many design and location decisions (especially in 'greenfields' sites).