Ergonomics, also known as Human Factors (which means “fitting things to people”), draws on scientific data about humans’ true capabilities and limitations. In the building industry, it is often the key to a well-justified Performance Solution, by considering the attributes of users of a facility, when and how they use it, as well as explaining how people actually see, move, understand and sense their surroundings. It takes into account the breadth of human behaviour, human size, strength, abilities, and limits. Ergonomics is a powerful tool in developing justified Performance Solutions.