Memo motion or spaced-shot photography is a tool of

time and motion study A time and motion study (or time–motion study) is a business efficiency technique combining the ''time study'' work of Frederick Winslow Taylor with the ''motion study'' work of Frank and Lillian Gilbreth (the same couple as is best known t ...

that analyzes long operations by using a camera. It was developed 1946 by Marvin E. Mundel at

Purdue University Purdue University is a Public university#United States, public Land-grant university, land-grant research university in West Lafayette, Indiana, United States, and the flagship campus of the Purdue University system. The university was founded ...

, 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 Motion and time study''. A study showed the following advantages of Memo-Motion in regard to other forms of time and motion study:Norbury, Clifford J.: The Application of Memo-Motion to Industrial Operations. Cranfield : College of Aeronautics, 1954. #Single operator repetition work ... #Aerea studies, the study of a group of men or machines. #Team studies. #Utilisation studies. #Work measurement. As a versatile tool of work study it was used in the US to some extent, but rarely in Europe and other industrial countries mainly because of difficulties procuring the required cameras. Today Memo-Motion could have a comeback because more and more workplaces have conditions which it can explore. Scottish motion study pioneer, Anne Gillespie Shaw, used Memomotion in a number of films commissioned from her company, The Anne Shaw Organisation, fo
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References

{{Reflist Time and motion study Industrial equipment