GILBRETHS

Frank Bunker(1868-1924) and Lillian Moller Gilbreth(1878-1972) are world-fomous due to their pioneer work about time and motion study and efficiency.They were important people because of contributing to improvement of industrial engineering. Frank Bunker ended formal education after high school. Frank focused on motion and exhaution at his studies. He calim that every needless motion redouble exhaustion so efficiency can increase with eliminating this. By using this, he find the ways of bricklaying faster and easier. After marrying Lillian, they focus on applying the social sciences to industry. They try to make good the action of the worker instead of making changes to the work enviroment.The Gilberths developed method of time-and-motion study, and their research resulted in the publication of Motion Study in 1911.

Gilbreth decreased all motions of the hand into some mixture of 18 basic motions. These included grasp, transport loaded, and hold. Gilbreth named the motions therbligs, "Gilbreth" spelled backwards with the th transposed. Based on this, Gilberths used micro-motion study in order to record and inspect detailed short-cycled motions as well as inventing cyclographs and chronocycle graphs to examine rhythm and movement.

Lillion Evelyn Moller was American psychologist and the first lady engineering. By help of Lillion, they perform some studies with the human factor.
Gilbreths were influenced from Taylor about their studying of industrial engineering. However, while Taylor focus on the human element as well as the technical, Gilberths study to improve overall job performance and worker efficiency. They considered priority to human factor.

references:
http://www.kouemk.com/index.php?option=com_content&task=view&id=70
http://www.telelavoro.rassegna.it/fad/socorg03/l2/Frank%20and%20Lillian%20Gilbreth.htm
http://en.wikipedia.org/wiki/Frank_Bunker_Gilbreth
http://www.britannica.com/eb/topic-233585/Frank-Bunker-Gilbreth