MOST

1. Fundamentals of Work Measurement
Introduction On MOST
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2. Work Measurement & Standards
Applied Management Science for Decision Making, 1e © 2011 Pearson Prentice-Hall, Inc. Philip A. Vaccaro , PhD s@copyright

3. Comparison of MTM-1, MTM-2 AND MTM-3
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
Time/Accuracy-
100 TMUs
15 min/+-21% 6 min/+-40% 2 min / +- 7%

4. Maynard Operation Sequence Technique
(MOST)
• Considered a revolutionary PMTS (Predetermined Motion Time Systems)
• Developed by Kjell Zandin and H. B. Maynard and Company, Inc.
in 1974
• Based on MTM:
• The movement of objects follows consistently repeating
patterns.
• Repeated patterns in the sequence of MTM (Methods time
measurement) have been consolidated.
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5. PMTS: Advantages and Disadvantages
• Advantages
• Eliminates the need for subjective performance rating
• Easy to learn and apply
• Allows for simulation/forecasting
• Disadvantages
• Can be met with apprehension by those who are
unfamiliar with this work measurement technique
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6. Features of MOST
• Reduces application time
• Is accurate
• Is easy to learn and use
• Requires a minimum of paperwork
• Generates consistent results
• Encourages method improvement
• Can be used in a wide variety of industries
• 100% performance level
• activity timings can be obtained in advance
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7. MOST Work Measurement Systems
• BasicMOST®
• The most commonly used version of MOST
• Typically used for :
• Activities that are ‘medium cycle’ (a few seconds to
approximately 10 minutes)
• Repetitive and non-repetitive activities
• AdminMOST
• Version of BasicMOST that focuses on analyzing administrative
and clerical activities
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8. Time Measurement Units
1 hour = 100,000 TMU
1 minute = 1667 TMU
1 second = 27.8 TMU
1 TMU = 0.00001 hour
1 TMU = 0.0006 minutes
1 TMU = 0.036 seconds
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9. 9
Sequence Models
Basic MOST WORK MEASUREMENT TECHNIQUE
ACTIVITY SEQUENCE MODEL SUB – ACTIVITIES
General Move A B G A B P A A – Action Distance
B – Body Motion
G – Gain Control
P – Placement
Controlled Move A B G M X I A M – Move Controlled
X – Process Time
I – Alignment
Tool Use A B G A B P _ A B P A F – Fasten
L – Loosen
C – Cut
S – Surface Treat
M – Measure
R – Record
T - Think
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10. Fundamentals of
Work
Measurement
General Move
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12. A B G A B P A6 6 1 6 0 1 0
Index Values
• Each parameter is assigned an index value
based on the motion needed to perform the
activity.
• Index values are then used to generate the
total time required to perform a task.
Get Put Return
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13. Time Calculation
• To arrive at the time for the step:
• Sum the index values.
• 6 + 6 + 1 + 6 + 0 + 1 + 0 = 20
• Multiply by a factor of 10 to get time value (in
BasicMOST).
• 20 x 10 = 200 TMU
A6 B6 G1 A6 B0 P1 A0
Get Put Return
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14. Fundamentals of
Work
Measurement
Controlled Move
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16. M - Move Controlled (p. 57-63)
• All manually guided movements or actions of objects over a
controlled path (using fingers, hands or feet)
• Two categories:
• Push / Pull / Turn
• Pushing buttons, pulling levers, opening books,
pushing carts
• Crank
• Turning a handwheel, turning the handle on
manual pencil sharpener
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18. Fundamentals of Work
Measurement
Tool Use
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20. Tool Use (p. 70-78)
• Combination of General Moves and Controlled Moves
• Covers the handling and use of tools
• Get Tool
• Put Tool
• Tool Action
• Aside Tool
• Return
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21. Tool Use
• Examples of Tool Use activities:
• Secure a cap on a bottle with 5 finger spins.
• Fasten a screw with a screwdriver 8 wrist turns.
• Loosen a nut with a wrench using 3 wrist strokes.
• Cut open a box with a knife.
• Read 3 words from purchase order.
• Wipe a surface with a cloth.
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22. F Fasten
L Loosen
C Cut
S Surface Treat
M Measure
R Record
T Think
Tool Use Phases
Tool Use
Parameters
A B G
Get
Tool
A B P
Put
Tool
Tool
Action
A B P
Aside
Tool
A
Return
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23. Tool Use Analysis
• Pick up a screwdriver from the table within
reach and place it on the head of a screw,
turn down the screw 9 wrist turns and set
aside the tool.
A1B0G1 A1B0P3 F16 A1B0P1 A0 = 240 TMU
A B G
Get
Tool
A B P
Put
Tool
Tool
Action
A B P
Aside
Tool
A
Return
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24. Combination of GM and CM
Tool Use
A1 B0 G1 A1 B0 P3 F16 A1 B0 P1 A0 = 240 TMU
• Pick up a screwdriver from the table within reach and place it on the head of a screw, turn down the screw 9 wrist
turns and set aside the tool.
GM and CM
A1 B0 G1 A1 B0 P3 A0 = 60 TMU
A0 B0 G0 M1 X0 I0 A0 = 10 TMU
A0 B0 (G1 M1) X0 I0 A0 (8) = 160 TMU
A0 B0 G0 A1 B0 P1 A0 = 20 TMU
250 TMU
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25. Tool Use Analysis
• Two tables on data card
• Fasten or Loosen
• Cut, Surface Treat, Measure, Record and Think
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27. Deliverables:
Continuous Productivity Improvement
• Reduce Work content
• Improve work balancing / line organization
• Increase working Speed
• Improve processes to reduce process time
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28. How to achieve?
• Kaizens based on Target Work Content
• Line Balancing
• Working at a faster pace than 100 % MTM
• Process / Product design modifications
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