basics of VSM...

1. Value Stream Mapping
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2. Value Stream Mapping
• A tool originally used by the Toyota Production
System experts to study processes
• Developed and refined by John Shook and Mike
Rother
• Used in manufacturing, engineering and
administrative offices by lean experts to improve
business processes

3. Value Stream Mapping Definition
– Special type of flow chart that uses
symbols known as "the language of Lean"
to depict and improve the flow of
inventory and information.
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4. What is a Value Stream?
A value stream involves all the
steps, both value added and
non value added, required to
complete a product or service
from beginning to end

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Value Stream Improvement
& Process Improvement
Value Stream
Improvement
PROCESS PROCESS PROCESS
Outgoing Finished
Product
Incoming Raw
Materials
Customer

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PURPOSE :
 Understand the role value stream mapping plays
in continuous improvement
 Draw a current-state map
 Draw a future-state map
 Develop an implementation plan
Getting Started

7. Using the Value Stream Mapping Tool
Understanding how things
currently operate. This is
the foundation for the
future state.
Scoping the
Value Stream
Designing a lean flow through
the enterprise.
Current state
drawing
Future state
drawing
Determine the Value
Stream to be improved
Planning and The goal of mapping!
Implementation

8. Advantage of Value Stream Mapping &
Analysis
• Develop a common understanding of the current process
– The relationship of process steps
– A true picture of the process
• Create a baseline to measure improvements against
• Define a vision of the future process
• Establish common leadership objectives
• Identify opportunities for improvement
• Design an implementation plan for improvements
“If you can’t describe what you are doing as a process,
you don’t know what you’re doing.” W. Edwards Deming
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9. Analyzing the Value Stream
Planning tool to optimize
results of eliminating waste
current state VSM future state VSM
+ + Lean =
Basics
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10. A SIMPLE EXAMPLE…………..
Info: Location of stapler Info: Where to place staple
Pick Up Paper Walk to Stapler Staple Paper
Time: 1 sec.
Distance: 0
Walk to Desk Put Down Paper
Time: 5 sec.
Distance: 20 ft.
Time: 5 sec.
Distance: 20 ft.
Time: 2 sec.
Distance: 0
Time: 1 sec.
Distance: 0
Total Time: 14 sec.
Total Dist: 40 ft.
Value Added Time: 4 sec.
Value Added Dist: 0
Value Added Time: 28%
Excess Travel
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The Current State Map

12. Sample VSM Map
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13. VSM Symbols
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Value Stream Mapping Symbols

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Current State Drawing
Current State
Product
Family
Current State
Drawing
Future State
Drawing
Plan and
Implementation
Determining how production
currently operates.
Material and Information flows
Draw using VSM icons
Start with the “door to door” flow
Walk the production lines and get actuals
No standard times
Draw by hand, with pencil
Foundation for the Future Site

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TAKT Time
TAKT Time
Match assembly pace to pace of orders.
Rate for assembling based on orders rate.
Work Time per Shift
TAKT Time =
Customer Requirement per Shift
27,600 sec
460 pieces
= 60 seconds

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Future State Value Stream

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Future State Drawing
Future State
Product
Family
Current State
Drawing
Future State
Drawing
Plan and
Implementation
Designing a LEAN Flow
The power behind Value Stream Mapping is you
always need a future state!
Keep Updating. Use pencil!
Material and Information flows
Basis for your Work Plan – like a “blueprint”
Begin by drawing on Current State
1st iteration assumes existing steps & equipment
Can move equipment, combine, take out
conveyors, make minor purchases etc.
But, there is a Problem!

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Future State Map
Future State

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