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