Smart wearable devices like watches and fitness bands are popular for health monitoring but are not widely used in building automation for HVAC control due to challenges like thermal comfort subjectivity and data privacy concerns. Despite advancements, widespread adoption and privacy issues remain hurdles for BAS designers.

Building operators now have more diverse responsibilities including HVAC systems, BAS controls, and energy management due to technological advancements. They must also navigate complex green technologies and energy-saving programs, often requiring specialized expertise and training. The aging workforce poses a challenge, with many operators nearing retirement, highlighting the need for effective knowledge transfer and training programs for the next generation.