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/