Editing Lillian Moller Gilbreth (section)

===Time, motion, and fatigue study===
{{See also|Time and motion study|Gilbreth, Inc.}}

Gilbreth and her husband were equal partners in the engineering and management consulting firm of Gilbreth, Incorporated. She continued to lead the company for decades after his death in 1924.{{sfnp|Gugin|St. Clair|2015|p=131}} The Gilbreths, both pioneers in scientific management, were especially adept at performing [[time and motion study|time-and-motion studies]]. They named their methodology the Gilbreth System and used the slogan, "The One Best Way to Do Work," to promote it. The Gilbreths also developed a new technique for their studies that used a motion-picture camera to record work processes. These filmed observations enabled the Gilbreths to redesign machinery to better suit workers' movements to improve efficiency and reduce fatigue.{{sfnp|Weber|1997|pp=40–41}} Their research on fatigue study was a forerunner to [[ergonomics]].<ref name="Dempsey2006">{{cite book |last=Dempsey |first=P.G.|editor=Waldemar Karwowski|title=International Encyclopedia of Ergonomics and Human Factors |chapter-url=https://books.google.com/books?id=CqSA2DVm6nsC&pg=PA3355 |edition=2nd|volume=3 |year=2006 |publisher=CRC Press |isbn=978-0-415-30430-6 |pages=3354–3356 |chapter=Scientific Management Influences on Ergonomic Analysis Techniques}}</ref> In addition, the Gilbreths applied a human approach to scientific management to develop innovations in workplace efficiency, such as improved lighting and regular breaks, as well as ideas for workplace psychological well-being, such as suggestion boxes and free books.{{sfnp|Gugin|St. Clair|2015|pp=131–2}}<ref name=Graham1999>{{Cite journal|last=Graham|first=Laurel D.|date=1999|title=Domesticating Efficiency: Lillian Gilbreth's Scientific Management of Homemakers, 1924–1930|jstor=3175321|journal=Signs|volume=24|issue=3|pages=633–675|doi=10.1086/495368|s2cid=144624185}}</ref>