System integration is a clear advantage and in this day and age most BMS systems have embraced open technology. Some are more open than others, and some use more than just one open protocol.

What must be avoided at all times is a “cocktail” of Open Protocols. So whenever possible we advocate the exclusive use of the ISO BACnet Standard. As referred to in the term "Native BACnet".

Using BACnet technology Total Control has delivered many successful integration projects : lighting systems that register occupation and turn on HVAC plant; meter monitoring to automate energy saving routines; hotel check-in systems to enable bedroom services only when sold; and many more.