The downside is that customers get locked into one vendor's products and can't tap into a wider market of devices and applications that they know will work together. Thus the moves toward IoT by companies like Lucid, with its vendor-agnostic Building OS, and by more established players, including Tyco and Johnson. Tyco is getting into IoT with products like Tyco On, which can gather and analyze data from other vendors' devices, and Honeywell is doing the same with its Niagara platform.
Enterprises are starting to demand more open approaches so they can add new IoT gear to their existing equipment, Machina Research analyst Andy Castonguay said.
Still, building-management customers are also just starting out on the IoT path, so there may still be room for special integration between Tyco's and Johnson's technologies, Gillett said.
Sign up for CIO Asia eNewsletters.