Gilbreth's micromotion study

Gilbreth's micromotion study

[′gil·brəths ¦mī·krō¦mō·shən ‚stəd·ē]
(industrial engineering)
A time and motion study based on the concept that all work is performed by using a relatively few basic operations in varying combinations and sequence; basic elements (therbligs) include grasp, search, move, reach, and hold.