Motion Element Synthesis

Abstract

An element of motion cannot be specified in isolation but only in relation to other elements in the motion cycle. Adherents to time and motion study principles have assumed that all motions can be analyzed into elements and these additively combined as though each was independent of the others. Studies in which travel distance and manipulation were systematically varied have shown that elements of each interact with the other. Other studies have examined the import of perceptual factors and precision in motion cycles and have arrived at the same conclusion: elements of motion cannot be specified independently but only in relation to the other elements in the cycle. This contention is related to the Gestalt concept that the whole is more than the sum of the parts.

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References

Barnes

R. M.

Motion and time study. (4th ed.) New York: Wiley, 1949.

Barnes

R. M.

, & Mundel

M. E.

A study of hand motion used in small assembly work. Univer. Iowa Stud. engng Bull., 1939, No. 16.

Bass

B. M.

Are motor response elements additive?

Percept. mot. Skills, 1962, 15, 433–434.

Buffa

E. S.

The additivity of universal standard data elements: II. J. industr. Engng, 1957, 8, 327–334.

Buffa

E. S.

, & Lymen

The additivity of the times for human motor response elements in a simulated industrial assembly task. J. appl. Psychol., 1958, 42, 379–383.

Ghiselli

E. E.

, & Brown

G. W.

Personnel and industrial psychology. New York: McGraw-Hill, 1949.

Gilbreth

F. B.

, & Gilbreth

L. M.

Classifying the elements of work. Mgmt & Admin., 1924, 8(2), 151.

Hall

N. B.

Jr.

Internal relations of elemental motions within a task. J. appl. Psychol., 1956, 40, 91–95.

Harris

S. J.

, & Smith

K. U.

Dimensional analysis of motion: VII. Extent and direction of manipulation movements as factors in defining motions. J. appl. Psychol., 1954, 38, 126–130.

10.

Hecker

Green

, & Smith

K. U.

Dimensional analysis of motion: X. Experimental evaluation of a time-study problem. J. appl. Psychol., 1956, 40, 220–227.

11.

Huiskamp

Smader

R. C.

, & Smith

K. U.

Dimensional analysis of motion: IX. Comparison of visual and nonvisual control of component movements. J. appl. Psychol., 1956, 40, 181–186.

12.

Nadler

Therblig relationships: I. Added cycle work and contact therblig effects. J. industr. Engng, 1955, 6, 3–4.

13.

Nadler

, & Wilkes

J. W.

Studies in relationships of therbligs. Advanc. Mgmt, 1953, 2, 20–22.

14.

Schmidtke

, & Stier

An experimental evaluation of the validity of predetermined elemental time systems. J. industr. Engng, 1961, 12(3), 182–204.

15.

Simon

J. R.

The duration of movement components in a repetitive task as a function of the locus of a perceptual cue. J. appl. Psychol., 1956, 40, 295–301.

16.

Simon

J. R.

, & Simon

B. P.

Duration of movements in a dial setting task as a function of the precision of the manipulation. J. appl. Psychol., 1959, 43, 389–394.

17.

Simon

J. R.

, & Smader

Dimensional analysis of motion: VIII. The role of visual discrimination in motion cycles. J. appl. Psychol., 1955, 39, 5–10.

18.

Smith

K. U.

, & Smith

W. M.

Perception and motion. Philadelphia: Saunders, 1962.

19.

Smith

K. U.

, & Wehrkamp

A universal motion analyzer applied to psychomotor performance. Science, 1951, 113, 242–244.

20.

Spreigel

W. R.

, & Myers

C. E.

The writings of the Gilbreths. Homewood, Ill.: R. D. Irwin, 1953.

21.

Stiling

D. R.

A study of the additive properties of motion element times. In Proc. 5th Industr. Engng Inst. Berkeley: Univer. Calif., 1953. [J. appl. Psychol., 1958, 42, 379 (Abstract)]

22.

Wehrkamp

, & Smith

K. U.

Dimensional analysis of motion: II. Travel distance effects. J. appl. Psychol., 1952, 36, 201–206.

Motion Element Synthesis—An Assessment

Abstract

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