Comparison of MTM-1, MTM-2 and MTM-3

Methods Time Measurement (MTM): 

MTM is a procedure that analyses manual operations or methods into basic motions needed to perform it, and assigns each a predetermined time based on the motion and environmental conditions.

This data and the application rules for the MTM system were refined, extended, defined, industrially tested and documented as a result of further work in later years. MTM is evolved from MTM-1 to MTM-2 to MTM-3 over a time.

As a newbie to the Work Study, a common question comes in mind about variation of MTM-1, MTM-2 and MTM-3. A brief comparison of these three systems are shown in the following table.

Comparison of MTM-1, MTM-2 and MTM-3

MTM-1
MTM-2
MTM-3
Therbligs Utilized
Release
Get
Handle
Reach
Grasp
Move
Put
Position
Time to analyze job
250 X Cycle Time
100 X cycle time
35 X Cycle time
Relative Speed
1
2.5
7
Time/Accuracy- 100 TMUs
15 min/+-21%
6 min/+-40%
2 min / +- 7%

Source of this table: MTM Association and accessed on http://www2.ie.psu.edu/

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