Structured wiring or cabling is simply a fancy term for wiring your premises for every foreseeable technology that might arrive soon over copper wire or fibre optic cable. This includes the NBN which is supposed to arrive on the Peninsula in the next 10 years. People are advised to begin preparing new buildings or renovations for the NBN.
Commercial structured cabling may be to wire the premises for telephone (includes intercom), network (computers), cameras, security, and access control.
A board room may be wired for video conferencing, or for video displays / presentations to sales staff.
Typically a commercial premise may have different locations that everything wires back to, sound and audio may go to a different location to phone and computers.
A domestic structured cabling solution is slightly different to a commercial solution. Generally it would include more sound and vision with multiple speakers wired throughout the home, usually on multiple zones.
A home may be wired for security, cameras, intercom, but structured wiring goes further to include phone, computer, TV (both FTA & pay TV), distributed video (from the home theatre room), infra red control, music distribution & speakers in almost every room.
Typically domestic premises will have the same location for everything to wire back to, usually located in a large network rack, allowing interconnection between all sound and video, all phone and network.