
1) Time and motion study
Found on
https://www.crosswordclues.com/clue/memo-motion

Memo motion or spaced-shot photography is a tool of time and motion study that analyzes long operations by using a camera. It was developed 1946 by Marvin E. Mundel at Purdue University, who was first to save film material while planning studies on kitchen work. Mundel published the method in 1947 with several studies in his textbook Systematic Mo...
Found on
http://en.wikipedia.org/wiki/Memo_motion
No exact match found.