30-07-2012, 03:07 PM
Predetermined Time System
[attachment=29542]
Advantages of predetermined times
Setting standards for a very short motions (very hard to evaluate using other measures)
Standard “language” of documenting sequences of elements which define operations
Enable to determine standard times for new operations for whom we don’t have past data
Enable to compare different methods of performing a new task (before applying the preferred method)
Usable for workers training
Methods Time Measurements
The data for the development of MTM was obtained from motion pictures (using mechanical cameras) of skilled workers performing a wide range of motions
Influence factors were identified and isolated in the motion analysis
The influence factors became the motion characteristics which are used for determining the standard times
Each motion was separately defined and tabulated for setting the standard times
MTM was accepted as a standard method in many countries all over the world
definition & characteristics
A procedure which analyses manual work into a basic motions required to perform it
The procedure assigns to each motion a pre-determined time standard which is influenced by the environmental conditions
Based on 23 basic motions and consists of approximately 5,000 time values (4,988)
What is MOST ?
Maynard Operation Sequence Technique
Developed by Zandin (1980)
Utilizes larger blocks of fundamental motions than MTM-1
[attachment=29542]
Advantages of predetermined times
Setting standards for a very short motions (very hard to evaluate using other measures)
Standard “language” of documenting sequences of elements which define operations
Enable to determine standard times for new operations for whom we don’t have past data
Enable to compare different methods of performing a new task (before applying the preferred method)
Usable for workers training
Methods Time Measurements
The data for the development of MTM was obtained from motion pictures (using mechanical cameras) of skilled workers performing a wide range of motions
Influence factors were identified and isolated in the motion analysis
The influence factors became the motion characteristics which are used for determining the standard times
Each motion was separately defined and tabulated for setting the standard times
MTM was accepted as a standard method in many countries all over the world
definition & characteristics
A procedure which analyses manual work into a basic motions required to perform it
The procedure assigns to each motion a pre-determined time standard which is influenced by the environmental conditions
Based on 23 basic motions and consists of approximately 5,000 time values (4,988)
What is MOST ?
Maynard Operation Sequence Technique
Developed by Zandin (1980)
Utilizes larger blocks of fundamental motions than MTM-1