Ergonomics is the law of customizing a job, task, or work tool to fit a person based upon his or her anthropometric dimension, physical capacity, and capability in order to optimize his or her work performance and minimize the risks of injuries. When a person's work performance can be optimized, his or her job satisfaction can be increased. When job satisfaction is optimized, employees' productivity increases as the result. Ultimately, organizations benefit as a whole. Furthermore, when the risks of workplace injuries are minimized, medical claims decline and companies' profitability can be retained. This is the ultimate principle of Ergonomics.