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MOST – Maynard Operation Sequence Technique

•In MTM:–the elements are stand alone and do not relate to

the sequence of the operation

•In MOST:–The compete sequence of the operation, which

consists of smaller elements, is addressed

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What is MOST?

•Maynard Operation Sequence Technique•Developed by Zandin (1980)•Utilizes larger blocks of fundamental motions than MTM-

1•General Move

–A B G A B P A

•Controlled Move–A B G M X I A

•Tool Use–A B G A B P _ A B P A

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Three activity sequences in MOST

•The General Move Sequence (for a free movement through air)

•The Controlled Move Sequence (for a movement in which the object remains in contact with a surface or is

attached to another object during the movement)

•The Tool Use Sequence (for the use of common hand tools)

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Why MOST?

•It is much faster than traditional time study technique (e.g. Basic MOST is 40 times faster

than MTM-1)•Accuracy of up to 95% can be obtained•It requires less documentation

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Remember TMU?

•Time for therbligs is measured in Time Measurement Unit (TMU)

•1 TMU = 0.00001 hour = 0.0006 minute = 0.036 second

•1 hour = 100,000 TMU•1 minute = 1,667 TMU•1 second = 27.8 TMU

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Sequence ModelsBasic MOST WORK MEASUREMENT TECHNIQUE

ACTIVITYSEQUENCE MODELSUB – ACTIVITIES

General MoveA B G A B P AA – Action Distance

B – Body Motion

G – Gain Control

P – Placement

Controlled MoveA B G M X I AM – Move Controlled

X – Process Time

I – Alignment

Tool UseA B G A B P _ A B P AF – Fasten

L – Loosen

C – Cut

S – Surface Treat

M – Measure

R – Record

T - Think

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MOST Study FormMOST - Calculation

Code:

Date:

Area:Sign:

Page: /

Activity:

Conditions:

No.

MethodSequence ModelFr.TMU

1Describe activity 1Ax Bx Gx Ax Bx Px Ax

2　Describe activity 2Ax Bx Gx Ax Bx Px Ax　　

3　Describe activity 3Ax Bx Gx Mx Xx Ix Ax　　

　　　 Ax Bx Gx Ax Bx Px _ Ax Bx Px Ax　　

TIME =minutes (min.)　

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MOST Study Form

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Example–Get cover, and place in front.

•Reach 24”, grasp, move 24” in front.–Open cover.

•Reach the cover with other hand by 30”, grasp the flap of cover, disengage the flap with normal effort, turn

flap by 120 degree.–Remove spec from the cover, and place aside on table.

•Grasp the spec inside the cover, move it out of the frame by 4”, move it on the table by 30”

–Close the cover.•Reach for the cover flap in other hand, turn the cover

to close, apply slight pressure–Put the cover aside.

•Move it back to previous position in 30”

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Example–Get cover, and place in front.

•Reach 24”, grasp, move 24” in front .•A1 B0 G1 A1 B0 P1 A0

–Open cover.•Reach the cover with other hand by 30”, grasp the flap

of cover, disengage the flap with normal effort, turn flap by 120 degree.

•A1 B0 G3 M1 X0 I0 A0–Remove spec from the cover, and place aside on table.

•Grasp the spec inside the cover, move it out of the frame by 4”, move it on the table by 30”

•A1 B0 G3 A1 B0 P1 A0

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Example–Close the cover.

•Reach for the cover flap in other hand, turn the cover to close, apply slight pressure

•A1 B0 G1 M3 X0 I0 A0–Put the cover aside.

•Move it back to previous position in 30”•A0 B0 G0 A1 B0 P1 A1