Column chart titled "What DESIGN challenges are impacting the development of your smart home solutions most?" The first and third bar are light blue, while the rest of the bars are dark blue. The data reads: Interoperability across the smart home ecosystem 78%  Integrating electronics (optics, etc.) 70%  Device-to-internet connectivity  68%  Human-machine interfaces 65%  Device security 57%  Wireless charging 22%   Annual cloud costs  13%