Advanced Lean Training Manual Band 4
Short Description
LEAN: Delivering value to Customers with shortest turn around time...
Description
Advanced Lean Module
Advanced Lean
LEAN: Delivering value to Customers with shortest turn around time Advanced Lean
Agenda • Lean Overview ~ Recap….. • Lean Methodology • Lean Toolkit • Lean Deployment • Lean Resources
Advanced Lean
• Lean Overview ~ Recap….
Lean History
Lean Explained
Lean Benefits
Lean Usage
Lean Basic Toolkit
• Lean Methodology • Lean Advanced Toolkit • Lean Deployment • Lean Resources
Advanced Lean
Lean History
Recap…
TOYOTA Toyota Production System
• Single Piece Flow • Pull Production • TAKT Time Production
e m i T n i t s u J
People People People
a k o d i J
• Autonomation • Built-In Quality • Stopping at Abnormalities
Heijunka • Level Loading • Sequencing • Stability
Some Key Lean Concepts developed at Toyota Advanced Lean
Lean Thinking
Recap…
A principle driven, tool based philosophy that focuses on eliminating waste so that all activities/steps add value from the customers perspective.
Lean Thinking is all about continuous waste elimination !
Imagine Office Processes with: • • • • • •
Advanced Lean
Higher Customer Satisfaction ic e i f c f f O O ) ) Shorter Lead Time c k a e B ( g a a g t n n n i k a Higher Flexibility v d M a a c c i e g t e a a Higher Quality r r t s a Lower Costs Higher Employee Satisfaction
Lean Explained
Recap…
What is Lean? A strategy, philosophy, process and leadership approach for operating in a superior way. Results include:
Reduced cycle times (product development and production)
Increased quality
Reduced costs and inventory
Increased capacity potential
Improved customer service
High levels of worker involvement, ownership and commitment
Improved financial returns
Lean concepts apply across all processes and industries Advanced Lean
Lean Explained The conventional way: +Profit
Recap…
Price = cost
Increase profit by Price Increase
Price to sell Bigger profit Some profit Cost to produce
But, may lose customers!
Advanced Lean
Lean Explained The new way:
Recap…
Price - cost =Profit
Increase profit by Cost Reduction
Price to sell
Some profit Cost to produce
Advanced Lean
Bigger profit
Lean Benefits
Recap…
Cycle Time Wait Time (non value add) Work Time (value add)
Before After
Same work completed in less time
Productivity Cost
Customer
Defects Lead
time
Inventory Space Waste!
satisfaction
Cost/Chaos
Profit Customer
responsiveness
Capacity Quality Cash On
flow
time delivery
Cycle time
Relentless Focus on Reducing non value adding activities Advanced Lean
Lean Usage
Recap…
Lean vs. Six Sigma Methodology Strengths
Define
Measure
Analyze Lean Six Sigma
Improve
Control
Six Sigma
• True VOC is Powerful
• Confirms Data Quality
• Data Driven Analysis
• Few Tools to Create Change in Critical X’s
• Few Tools or Direction
Lean
• Value Stream Mapping . . . Boundaryless & MultiGenerational
• Standard Work & Target Sheets . . . Assumes Data is Good
• Observation and Intuition Based Analysis . . . PQ, PR, TAKT Time
• Many Tools for Driving Change
• Communicative
• Mixed Model Plan, Kan Ban, Visual Management
• Centered on Stable, Repeatable Process • Automation
Apply Any Tool from your Quality Tool Box Advanced Lean
Lean Usage
Recap…
When do I use Lean? Six Sigma Project
t r o f f E
Hybrid
t r o f f E
Time
Average ~ 4 Months
AWO
t r o f f E
Time
Average ~ 4 Months
Time
Average ~ 1½ Months
Lean For Quick Fixes….Six Sigma For Complex Processes !! Advanced Lean
Lean Usage
Recap…
Lean vs. Six Sigma? Lean
Simple or Wing to wing
Breadth
Six Sigma
Complex and Complex and Focused Focused
Depth
Lean
Helps identify steps that don’t add value and provides tools to eliminate them
Lean Success Factors/ Impact
Lean
Identifies problems in the flow
Six Sigma
Improves the capability of steps that do add value
Energizing Empowering Team work, Boundary less / Open mindset Passion for improvement Intuition / Action Customer focus
Six Sigma/Lean Sigma/Lean Improving the capability can eliminate additional steps
GE Values
Lean: Strengthens GE’s journey to Excellence Advanced Lean
Lean Usage
Recap…
So, why do I need Lean? Principle
Toolkit
Process
New ways to think about problems New problem solving tools and concepts An improvement methodology focused on action
Solutions
Simple Known
Complex
Just Do It!!
Lean!!
Ask an Expert!!
Six Sigma
Causes Unknown
We Need Lean to be Leaner Quickly…Let us start it!! Advanced Lean
Where are we going… Advanced tools Tool
Basic tools Tool • Value Stream Mapping, other lean tools, etc.
Old situation Issues • Inventory • Waiting • Defects •… No flow in the value stream.
Processes full of waste
Advanced Lean
Results • Reduction of waste • Learned to ‘see the flow’ • Couple of improvements
Remaining Issues • No real real continuous continuous flow • Still significant amount of waste.
• Creating Continuous Flow • Pull production
Challenge • More waste reduction • Real continuous flow • Flexible workforce • Less variance • Less waste
Lean Toolkit
Recap…
Level 2
Level 1
n o i t l a c i o t o s T i h p o S
Expose the Waste 5S • MUDA • Mistake proofing • Intro to Value Stream Mapping • Visual Management •
Reduce Variability Control the Process • Value Stream Mapping • • •
Standardized Work Intro to Continuous Flow Intro to Pull Production
Time / Cultural Maturity Applying the right tools at the right stage Advanced Lean
Lean Tools Overview
Recap…
number of Lean Tools and Techniques Tec hniques are available Tools and Techniques
Actions Bring Organization & Cleanliness to work area Understand Value Implement pullbased flow
5S Framework Value Stream Mapping
Reconfigure work areas Institute continuous improvement philosophy
Kanban, Just-in Time U-Shaped Cells Kaizen Events
Benefits Realized
Appropriate Tools and Techniques are to be used depending on the need Advanced Lean
Lean Tools Description Exposing the Waste ~ Recap…..
5S
7 Wastes
Mistake proofing
Visual Management
Advanced Lean
Recap…
5S
Recap…
5S – A Framework to create and maintain your workplace 1. S: SORT (Organization) Distinguish between what is and is not needed needed 2. S: SET IN ORDER (Orderliness) A place for everything and everything in its place 3. S: SHINE (Cleanliness) Cleaning and looking for ways to keep it clean 4. S: STANDARDIZE (Adherence) Clearly define Tasks and Procedures 5. S: SUSTAIN/SYSTEMIZ SUSTAIN/SYSTEMIZE E (Self-Discipline) Stick to the rules, scrupulously
Implementing the 5S is often the first step in Lean Transformation Advanced Lean
Muda ~ 7 Wastes
Recap…
UDA – Lean is a way to continuously eliminate wast The Seven Deadly WastesExamples Incorrect Layouts of office, factory, etc. Motion
People
Waiting Overproducti on
Process
Processing Defec ts Inventor y
Product
Transportati on
Lack of Proximity Of Machines Off-line Resources Watching Machines Work Long Set-ups and Lead Times Large Batches and Inventory Planning Full Utilization of Machines and Labor Producing More Goods than Marked Demand Poor Machine Maintenance Unnecessary Processing Steps Longer Lead Times Long Delays for Troubleshooting Costly Rework Dissatisfied Downstream Customers High Stocks of Raw Material, WIP, & Finished Goods Additional Space Requirements Clutter Unnecessary Movement Extra Handling “Moving Inventory”
At the end, everything results in Cost!! Advanced Lean
Mistake Proofing Overview
Recap…
• A technique for eliminating errors • Making it impossible to make mistakes BEST
Elimination > Eliminate the possibility of error Replacement > Substitute a more reliable process
BETTER
Facilitation > Make work simpler to perform
Use the highest level possible for the application.
Detection > Detect the error at the defect source GOOD
Mitigation > Minimize the effect
It is good to do it right the first time; it is even better to make it impossible to do it wrong the first time. Advanced Lean
isual Management Overview Why Visual Management ….
• Demonstrate how we manage our processes …Consistent Communication
• Excite customers/ stakeholders walking the floor … Visual Management
• Transparent view of Performance … Shared Ownership • Escalate abnormalities… abnormalities… Quicker Resolution • Decision making @ working level … Empowerment • Showcase Successes … Create a sense of Pride
Seeing is Believing Advanced Lean
Recap…
• Lean Overview … Recap • Lean Methodology
Five Lean Principles
• Lean Advanced Toolkit • Lean Deployment • Lean Resources
Advanced Lean
Five Lean Principles Lean Enterprise Raw Materials
Tier 2 Suppliers
Tier 1 Suppliers
General Electric
Customer
LEAN OFFICE
LEAN ENTERPRISE
Lean Enterprise: Maximizing Value Wing to Wing Advanced Lean
Five Lean Principles Lean Thinking The Fundamental Objective Provide perfect value to the customer through a perfect value creation process with zero waste in:
Design (concept to customer)
Build (order to delivery)
Service (order to cash)
The Fundamental Insight
Focus on each product and its value stream rather than organizations, assets, process technologies, and career paths
Ask which activities are waste and which truly create value
Enhance value & eliminate waste
Lean: Fundamentally Change how we do business Advanced Lean
Five Lean Principles Define value in from 1 the customers Specify perspective and express value in terms of a specific product
5 Work to Perfectio n
The complete elimination of waste so all activities create value for the customer
2 Value Map the Value Stream
Map all of the steps… value added & nonvalue added…that bring a product of service to the customer
3 Establish Flow The continuous movement of products, services and information from end to end through the process
4 Implemen t Nothing is done Pull by the upstream process until the downstream customer signals the need
The Tools get you there…The Principles keep you there Advanced Lean
Five Lean Principles capability provided to a customer at the right 1. Specify Value A time at an appropriate price, as defined in each
case by the customer.
Specify value from the standpoint of the end customer Ask how your current products/services products/services and processes disappoint your customer’s value expectation:
price?
quality?
reliable delivery?
rapid response to changing needs?
fundamental definition of the product?
Waste:
Activities that add no value, add cost and time
Symptoms; need to find root causes and eliminate them
7 types of waste
•Incidental Incidental Work •Work
•Pure PureWaste Waste
•Pure Waste •Value Value
•ValueAdding Typical Operation: 1-10% Activities are Value
Advanced Lean
Five Lean Principles 2. Map the Value Stream
“Whenever there is a product or service for a customer, there is a value stream. The challenge lies in seeing it.” (Womack, Learning To See)
Identify all of the steps currently required to move products from order to delivery
Challenge every step: Why is is this necessary? necessary? Would the customer think the product is worth less if this step could be left out?
Many steps are only o nly necessary because of the way firms are organized and previous decisions about assets and technologies
Value stream
All activities, both value added and non-value added, required to bring a product (or provide a capability) from raw material (initialization) into the arm of the customer 3 Main Value Streams: 1.
Raw material to customer
2.
Concept to launch
3. Order to cash the Mapping the VS – See the whole and improve system Advanced Lean
Five Lean Principles 3. Establish FlowLine up all steps that truly create value in a rapid
Require that every step in the process be: Continuous movementsequence of products, services and Capable – right every time (6 Sigma) information through the various transactions from end Available – always able to run (TPM) to end in the process
Flow appears impractical and illogical because we have been trained to think in terms of:
departments, silos
batches, queues
efficiencies and backlogs
Adequate – with capacity to avoid bottlenecks and over capitalization (right-sized tools)
Batch Processing – 1 minute per piece Continuous Flow – Make One Move One
A
B Cycle Time= 30++ Min (weeks)
C
A B C Cycle Time= 12 Min
Applying the right tools at the right stage
Advanced Lean
Five Lean Principles Nothing is done downstream until required 4. Implement Pull Nothing
upstream
A system of cascading production and delivery instructions in which nothing is done by the upstream supplier until the downstream customer signals the need
Through
lead time compression & correct value specification, let customers get exactly what’s wanted exactly when it’s wanted: At
the pull of the customer/next process
Using
signals (kanbans)
One more please!
Okay
supplier
customer
Pull: Customer Centric Advanced Lean
Five Lean Principles A continual cycle of process improvements 5. Work to Perfection
There is always more waste
People learn and exercise more creativity
Involve employees in the process, training them as you proceed.
Continuous improvement leads to innovation
Use root cause analysis to solve problems promptly and permanently.
Make objectives visible
Next Future State
Future State
Current State
Original State
Continuous Improvement never stops Advanced Lean
Lean Advanced Toolkit
Level 2
Level 1
n o i t l a c i o t o s T i h p o S
Expose the Waste 5S • MUDA • Mistake proofing • Intro to Value Stream Mapping • Visual Management •
Reduce Variability Control the Process • Value Stream Mapping • • •
Standardized Work Intro to Continuous Flow Intro to Pull Production
Time / Cultural Maturity Applying the right tools at the right stage Advanced Lean
Lean Tools Description Reduce Variability Control the Process
Value Stream Mapping
Standardized Work
Introduction to Continuous flow
Introduction to Pull production
Advanced Lean
Value Stream Mapping T C P A E N G L
E
V I S I O N A
N
ENTERPRI SE Advanced Lean
alue Stream Overview View of the entire Supply Chain SUPPLIERSYOUR PLANT OR BUSINESS CUSTOMER TO END USER
TOTAL VALUE STREAM
See the Whole Process from Start to Finish – Wing to Wing Advanced Lean
alue Stream Overview • Value Stream Mapping (VSM) is a pencil and paper tool to ol that helps us see and understand the flow of material and information as a product makes its way through the Value Stream • Follow the product or services path starting from the Customer and then move to the supplier and carefully draw a visual representation representation of every process • Ask a set of key questions and draw a “Future State” map of how value should flow • Help us see the sources of Waste and eliminate them
Looking at the process from a customer value perspective Advanced Lean
alue Stream Mapping Why Value Stream Mapping is a good place to start your LEAN journey
• it helps you visualize vi sualize more than just the single-process level, i.e. assembly, welding, etc. • it helps you see more than waste it helps you see the sources of waste in your value stream • it provides a common language for talking about manufacturing processes • it makes decisions about the flow apparent, so you can discuss them • it ties together lean concepts and techniques helps you avoid "cherry picking" • it forms the basis of an implementation plan
thelinkage Blueprint forthe a Lean Implementation Plan • itForms shows the between information flow and the material flow Advanced Lean
Value Stream Mapping VSM Steps • Identify the Value Stream for every Product Family major product family/program. Concept to launch - Order to delivery Current State Drawing
• Map the current state - Identify all the actions that don’t create value. Challenge every step
Future State Drawing
• Develop and map concepts for the future state as a management team
3 Implementation • Develop actions and drive toward future Plan state
After completion….look for other opportunities to improve Advanced Lean
alue Stream Mapping Current
Future
Dash Dash Value Stream Stream Map – Initial State
Flow: Information Material
OPSI Prod’n Cont.
13 WEEK FORECAST
GEC
Daily Orders
4 WEEK FORECAST
13 WEEK FORECAST
Forecast
OPSI
Sales 13 WEEK FORECAST
Orders
CRC
HLA
Customer
Daily Schedule
HA
TES T
ASSY
TEST
CONF
SHIP
3
2
2
6
4
2
6
15 Min.
3.5 Days 42 Min.
10 Days
8 Days 24 Min.
30 M in.
10 Days 1020 M in.
Irregular
5 Days 25 M in.
30 M in.
Heijunka
Non-ValueAdd 1,020 Hrs. (98% of Time) Value Add 20 Hrs. (2% of Time)
2% Value Added Time…98% Waste
Template ~ Create your own Value Stream Map
Daily
Customer
Heijunka
Irregular
JIT
Too Much InventorySMT Long Raw Set Bds Ups 3
Batch 2
7 Days 15 Min.
JIT
HA
8 WKS
SMED
Brds +RIP $3,300,000 19 Days Worth
3 Bd. Assy. 2,360 Units $425,000 11 Days Worth
Batch
TEST
Batch
Batch
24 Min.
30 M in.
Heijunka, Late Pt. ID
CONF
Too Much
4
10 Days
8 Days
Test WIP+FG $1,700,000 Too Much 10 Days Worth Inventory
JIT
ASSY 6
2
3.5 Days 42 Min.
Heijunka, J IT
TES T
Ass’y WIP 210 Units $513,000 3 Days Worth
Create Supermarket
2Variation 10 Days
1020 M in.
SHIP 6
5 Days 25 M in.
30 M in.
Non-Value Add 1,020 Hrs. (98% of Time) Value Add 20 Hrs. (2% of Time)
Clearly Identifies Opportunities to Drive Sustainable Change
Create a Value Stream
Identify AWO opportunities from the Value Stream map Advanced Lean
Sales
Create Supermarket
Create Supermarket
SMT
7 Days
Too Much Variation Daily Schedule
Too Much Variation
Test WIP+FG $1,700,000 10 Days Worth
Ass’y WIP 210 Units $513,000 3 Days Worth
Forecast Too Much Variation Orders
MRP
Too Much Inventory
Brds +RIP $3,300,000 19 Days Worth
CRC
HLA
13 WEEK FORECAST
Heijunka
• Portable Unit • Monitors Patient Vitals • Produce ~4,000/Qtr • Over 30,000 Variations
Raw Bds 8 WKS
Suppliers
Prod’n Cont.
Weekly Orders
GEC
Daily Orders
Daily
MRP
3 Bd. Assy. 2,360 Units $425,000 11 Days Worth
4 WEEK FORECAST
Prod’n Cont.
Prod’n Cont.
Weekly Orders
Suppliers
Dash – Lean Project Funnel Funnel
alue Stream Deployment Roadmap 1. Set the strategy 2. Find a change agent (how about you?) 3. Get the knowledge 4. Do an Action Work Out Action Work Out
7. Eliminate waste by executing the plan 8. Expand the scope to other areas
Don’t Wait!! – “Opportunities multiply as they are seized” Advanced Lean
Trace Collection Process: VSM No Phones
EXTERNAL AGENCY
GECFA
NL
L
Collections GE Money Mainframe (Vision Plus)
EXITS
L X
Mainframe
0-29 days past due accounts
Workable/Non Workable
4 Hours + 4 Mins
V+,CPAC, ICBS
c
IWP
c
DMS
c App req
10+5+5 Mins
c
FCS
3-9 DAYS
c
c Sentricx
10 + 4 Mins
Hold
5 - 11 DAYS
L = Locate NL = No Locate C = Call made
Wait Time Wait Time: up to 14 days
X
= Routed Advanced Lean
Value Add: Add: ~ 35 Min
Reduce TAT from 3-9Days to Less than 4 days
Value Stream Map From GE Rail ~ AWO
Before Lead Time: 76 Days 59 Total Steps
After Process Flow Lead Time: 52.35 Days 59 Total Steps
Advanced Lean
Standardized Work T C P A E N G L
E
V I S I O N A
N
ENTERPRI SE Advanced Lean
Standard Work Why have Standard Work? Elimination
Waste
To make office process rules explicit Establish the explicit methods for manual tasks with respect to quality, quantity, cost and safety. prevent wastes
A tool for Improvement There can be no improvement in the absence of standards. Abnormal situation show that something is goingexpose on. wastes
Advanced Lean
Standard Work The combination of people, information and material to carry out an operation in the most efficient way Office Processes
Normal vs. Abnormal When normal and abnormal work activities are undifferentiated, waste almost inevitably occurs. Standard Work provides an efficient framework in which to determine when an abnormality has occurred so that it can be addressed.
•
Often poorly defined
•
Examples: • Standardize Input • Hand-off can create huge waiting time. Reduce time by standardization
Flow effect • •
Provide clarity about activities Reduce process variance
•
Makes process reliable Exposes more waste
•
Identify Problems
Normal
vs.
Abnorm al
Provides the Basis for Kaizen Advanced Lean
Why?
Standard Work The devil is in the details. If you do not specify the standard, you allow wastes to occur that could be eliminated. But more important, it hinders learning and improvement in the organization.. organization Specify content, sequence, timing and outcome to prevent and to expose waste. However, keep in mind that the details have to improve the flow of value as drawn in a value stream map. A perfect example of Standard Work 1. Each worker understand understands s their their task. task. 2. All tools tools and and equipment equipment are at arms length length 3. Standard Standard work has has been practiced practiced to to perfection 4. Continuo Continuous us observatio observation n and analysis analysis drives drives continuous improvement Types of Waste Eliminated • Searching • Finding • Selecting • Transporting • Waiting Advanced Lean
Levels of Standardization
Two levels for standardization for every type of item •
Activity
•
Connection between activities
Connection Activity
Advanced Lean
Customer
Standard Activity Activity
Customer
Standard Activity have to make the activity direct and unambiguous. On a detailed level tasks/decisions/etc… should be specified. When designing a Standard Activity keep in mind the follow elements: 1. TAKT time 2. Work sequence 3. Standard work in process
Advanced Lean
Standard Work: Takt Time Element 1
Create Standard Work around Takt Time, keeping in mind the changes in Takt Time. Time. TAKT Time = the frequency at which a product or service must be competed in order to meet customer needs Rate of Customer Demand = Rate of Producing/Servicing
Available Time
Office Processes •
TAKT time formula:
Required Output (Customer or Forecasted Demand)
Time
Check any time if you’re on schedule: Daily 400 in-voices. It is 13:30, are we on schedule?
It’s 8:30 am. How are we doing? Takt Time
60”
7 am 8 am 9 am 10 am 11 am noon
A
B
C
D
(60”) (60” (60”)) (60”)(12”)
Advanced Lean
Person
Orders
Standard Work: Work Sequence Element 2
Standard Work • What has to be done? • In what sequence? • How much time can it take?
Work Sequence The order in which an person performs a series of repetitive tasks. It should be differentiated from the processing sequence, which is the order in which the part is processed.
Standard Work / Combination Sheet Use this Templat e N e w / Re v
P a ge
Orga niz a tion
Ar ea
X-Ray
Sta tio n 1 & 2
1of
1
J . Davi d
Sec ( )
Time Min (X)
Hr ( )
Production Line
2 /6 /0 2
Manual
A ut ut o
T ra ra ve ve l
Standard Work Combination Sheet
Operation Name
1 2
Check Motor Issue DHR
3 2
3 2
3
Install Gen. Housing
10
5
4
Install Clips
5
4
5
Install Term. Strip
6
6
6
Install/Wire Latch
4
4
10
6
10
20
30
40
M aan n ua ua l Auto
50
New / Rev
60
Travel Wait
Tubing
~~~~~~~~
70 74
80
Page
Organization
Shannon
Part Name
T ak ak t/ Ra Ra te te T im im e
Production Line
Operator
AM X
Part Number
P rro o du cctt io n Re Re q' q' d
Step No.
7 Jumper Wire to Filter
Da te
Supe rvisor
Standard Work Sheet Area
CF M Cell
Orbital Weld
90
1 of Supervisor
1
Fern Bissonnette
Weld
Date
2nd Qtr. ‘01
Standard Work Sheet
End Finish
Part Number Part Name
Weld
Cell 6 All Parts All Tubes
End Finish
Flex
Outside Cell FPI X-Ray EDM
Torch Braze Mech. Clean
Mech. Clean
Mark
Hydro Test
End Finish
Weld
Totals
40
30
Operation Time
T/T
Standard Work
Operator
Scope of Operations From:
Raw material
To:
Finished Goods
Quality Check
Safety Standard Precaution Work-in-Process
# Lots of Standard Work-in-Process
Total Manual & Travel Time Operator
Man/Travel Time
27 - avg lot = 6 Turns
Takt/Rate Time
100/Day
DPU' s
Physical or digital design
Standard Work Sheet and Standard Work/Combination Sheet defines the Work Sequence Advanced Lean
Standard Work: Standard WIP Element 3
Set a Standard WIP in your Cell, if applicable to your office process. The minimum Work in Process (WIP) required to perform repetitive operations, and maintain a continuous flow. Controls the in-process inventory to ensure an even and controlled process flow.
Standard WIP should be kept as low as possible. possible . Advanced Lean
Standard Connection Connection Customer
Hand-offs (connection) (connection) are a big cause of waste in the office.. office
The connection between two activities (hand-offs) is one of the biggest causes of waste in the office. Make sure that to standardize the connect between activities. Direct and unambiguous specifying: • …people involved • …form and quantity to be provided • …way requests are made by each customer • …expected time in which the requests will be met (!) •…
It creates a clear supplier-customer relationship. This will reduce the possibility for variance, which increases the quality standard in the office. Advanced Lean
Standardization Standardiza tion and Flexibility Don’t “Manage” a Standard … Detect the Abnormality Standardization makes abnormalities soon appear. By looking at the root causes of the abnormalities, you understand what is going on, and give the possibility to adjust. Two solutions: (1) eliminate the abnormality, or if not possible (2) adjust the standard to the new situation. Standardization increases your awareness of changes. And through this awareness you are able to adjust to these changes quickly, which increases your flexibility.
Standardization helps to create a flexible multi-disciplinary workforce. It is easy for a person to take over work from another person. Advanced Lean
Relation with other Lean Tools Value Stream Mapping First implement the improvements of the Future State (e.g. continuous flow, 5S, etc.). Then use Standard Work to standardize all the activities in and between the processes. It will expose waste (by abnormalities) and also prevents waste (keep everybody focused on normal way of working).
Creating Continuous Flow Standard Work helps to reduce variance allow the flow of value. Less variance improves the capability to create real continuous flow.
Mistake Proofing / Poke-Yoke Standard Work is the prerequisite for implementing Mistake Proofing. Mistake Proofing has to prevent to have defects going further on the line. If no standard, then defects Normal difficult to detect
Advanced Lean
Abnormal
Relation with other Lean Tools Don’t “Manage” a Standard … Detect the Abnormality Visual Management
Look Here …
Standard Work is the prerequisite for good visual management. It sets the standards for the work. Visual management has the objective to make abnormalities visual, so actions can be make right away.
Kaizen Standard Work provides a basis for improvement, because it exposes waste by abnormalities. These abnormalities are then subject to Kaizen Events to improve the processes. Advanced Lean
Standard
Not Here …
Summary
Standard Work
…prevents waste to occur.
…exposes waste and is the basis for continuous improvement.
…increases your flexibility.
Two levels of Standardization • Standard Activity • Standard Connection
Don’t “Manage” a Standard … Detect the Abnormality
Advanced Lean
Introduction to Single-PieceFlow (Continuous Flow) T C P A E N G L
E
V I S I O N A
N
ENTERPRI SE Advanced Lean
Single-Piece-Flow Single-Piece-F low in a Cell
Single-Piece-Flow Carrying out one-piece-at-a-time processing in order to eliminate stagnation of work (queue) in and between processing steps.
A
B
A
Cell An arrangement of people, systems, items, and methods with the processing steps placed right next to each other ( physically physically or digitally ) in sequential order, through which parts are processed in a continuous flow.
B
C
C
Physical Cell
Incoming Forms
Output
Digital Cell
Advanced Lean
Batch Vs Single Piece Flow Batch
Single Piece Flow
From: The Toyota Production System
Catches Defects too Late • How many more do you have? • Where are they in the process? • What is the root cause?
Catches Defects Immediately • You only have one • You know where it occurred • Resolve the root cause immediately
The Next Process is the Customer … Never Send Defects ! Advanced Lean
Why Use Single Piece Flow ? CTQ
Batch Production
Single Piece Flow
Quality Risk WIP FIFO Lead time Productivity * Changeover time ** • •
* Single Piece Flow productivity can be improved by balancing processes versus Takt Time ** Changeover time impact can c an be reduced by SMED or reducing changeover frequency, but, in this case, by increasing finished goods inventory.
Single piece flow is always better with respect to FIFO
Advanced Lean
Where to start?
Creating Single-piece-flow 1st time Value Stream Mapping
Prerequisites •
Process Level
Value Stream Mapping See the flow
Single Facility (door-to-door)
Multiple Service Facilities
Across Companies
Advanced Lean
•
An (potential) area for Cell
Which process area?
Supplier
=
Customer
?
Yes A main characteristic for office processes is that the customer of the process is often the supplier of the needed information for doing the whole value stream, as well. Therefore, the customer often has to wait for the whole lead time of the process.
Start within the area with the biggest potential of lead-time reduction.
No Start with the pace-maker process. That are the process steps in the value stream that are closed to the customer.
Advanced Lean
Roadmap - Creating Continuous Flow •
Cell Content Start looking at what items you should have in the cell.
•
Actual Work Then analyze actual work to be done in the cell.
•
System, Item, and Lay-out Optimize System, Item, and Cell Lay-out for creating continuous flow.
•
Work Distribution Distribute the Work among the People
•
Going to reduce waste out of: • Steps
Implement, Sustain, and Improve
• People activities
Actual implementation of Continuous Flow in a Cell
• System activities • Item design • Lay-out
We are going to look at the cell with Eyes for Flow Advanced Lean
Flow Key questions Cell Content •
Do you have the right end items?
•
What is the Takt Time?
Actual Work •
What are the work elements necessary to make one piece?
•
What is the actual time ti me required for each work element?
System, Item and Layout for Flow •
Is your System suitable for flow?
•
Is your item design for optimal continuous flow?
•
How can the process be laid out so one person can make one piece as efficiently as possible?
Work Distribution •
How to use your people efficiently?
•
How will you distribute the work among the people?
Advanced Lean
Do you have the right items? Think carefully about assigning right items to your cell. Here are some guidelines:
1. Flexibility
Cell for multiple items + More flexible for changing demand
Cells for one item
A
Advanced Lean
B
+ Pushes you to create short changeover time (waste reduction)
Cells for multiple items
A&B
A&B
Identify Items for cell Start with the product or service, that is the customer’s only interest in GE. To simplify, identify the product/service families: A group of products/service that go through the same or similar ‘downstream’ steps.
Process Steps & Equipment 1 m e t I
2
3
4
5
6
7
A
X
X
X
X
X
B
X
X
X
X
X
C
X
X
X
Map together in one Value Stream Map.
After analyzing, you might come up with the conclusion to have step 5, 6 and 7 in one cell.
2. Similarity of processing steps When required steps of the different products vary too t oo much, then separate cells. For example, item C does not look to t o be suitable for the cell. Advanced Lean
Do you have the right items?
3. Variance of different product types Total Work Content (see also next section) of the product going through the cell should not variance more than 30%, otherwise take them apart.
e m i T
Max. ~ 30%
A
B
4. Takt Time (production pace) Purpose:
Match Customer Demand Pace with Production Pace How often should we finish an item to serve the customer on time?
TAKT time:
Available Time Required Output (Customer Demand)
Advanced Lean
It’s the heartbeat of the process
or ma
ng
one piece)
Work element ‘smallest increment of work done by a person (not a system) that could be moved to another person’
Each process consist of a series of work elements. By collecting all the work elements in the cell, you get the total work content of the cell.
Calculate the actual work by using a Process Study Form Guidelines • Get REAL data, data, do not rely on standard time or data from the past. Get it yourself. • Time each work element seperately, otherwise you can include waste. Once timed individual elements then time operator’s complete cycle from start to finish. Compare to see the waste. • Time an experienced operator who is fully qualified to perform the job. • Seperate operator work time from system cycle time.
Breaking work in elements helps you to expose and identify waste Advanced Lean
Process Study Form
Process Study
Proc es s
Process Steps
Date/Time
Obs erv er
Operator Work Element
Observed times
Low Low est System Repeatable Cycle Time
Notes
s n t s e m e l e e k k r w o s a e s t e s a s w u o o i b v o y a n e d u n c l u n i t o D o n Full Process Study Template
Use this
Template Advanced Lean
Microsoft Excel Worksheet
Paper Kaizen First analyze the Total Work Content, and design improvement on paper …
Current 240
Improved Paper Kaizen
K
Approach of immediately leaving out wasteful steps. You eliminate some waste on paper before implementation.
Total Work Content for one item in the cell are activities A-K.
210
J I
K
180
e 150 m i T
H G F
First understand all the work elements that make the total work (Current)…
120
90
E
60
D C B
30
A Advanced Lean
I H G F
…then have a critical look on the work elements and design improvement on paper (Improved) to reduce wastes.
Paper Kaizen • Elimination: C and J • Time reduction: A and F
E D B A
Operator Balance Chart … then connect to Takt TIme.
210
180
Operator Balance Chart (OBC)
Takt Time 205 sec.
Picture of distribution of work among operators in relation to Takt Time.
K
• Simple • Visual
150
I 120
90
H G F
F
60
E
E
30
D B
D B
0
Takt Time 110 sec. K
Takt Time 82 sec. E
I
A
A
H G
1
1
2
Advanced Lean
• Quantative • No guesswork
D B A 1
K H G F
2
I 3
= Operator
Is your System suitable for flow? Is your system able to handle the Takt Time? If a System (or Machine) is part of Continuous Flow Cell, you should make sure it is appropriate enough for handling the Flow.
Effective System Cycle Time < (Fastest Takt Time – 20-25%) • Fluctuation in demand • Equipment is often less flexible than people
Also ask the follow questions about your System: Valuable?
- Does the System add value?
Capable?
- Does the System create no defects?
Available?
- Is the System always available when needed?
Adequate?
- Is the System not a bottleneck for the flow?
Flexible?
- Is the System flexible to adjust for changes?
• Is it working in batch or single piece? • Easy to replace (price)? • Easy to maintain? • Easy to use? • Is it optimal design to support continuous flow?
Should you have one integrated system, or different small systems connected by a simple workflow tool?
Advanced Lean
flow? Are your items optimal designed for creating continuous flow? •
•
•
How is the item presented in an easy, simplified, proper way? Are there any changes you can make on the item, so it takes less time for the operator to process? Are the items easy accessible, at their fingertips?
Ideally for a process • with high volume, low variety • with high frequency of use • with stable input
Advanced Lean
For example • Pay-roll •
Policy request processing
•
Customer Service Centers
Cell Layout How can the process be laid out so one person can make one piece as efficiently as possible? •
Avoid isolated islands of activities.
•
Minimize inventory accumulation between processes.
•
•
•
Remove (physical and digital) obstacles for the operator Make value creating activities easily accessible. Design good ergonomics. Keep manual, operator-based work steps close together to allow flexible work element distribution.
Advanced Lean
Office Cell Layout Cellular environment Cellular environment is an area of continuous flow . Physical…
Incoming Forms
Out
• Multi-functional • Co-located • One piece flow • Balanced – waste removed • Cross trained team • Staffed within the ‘interval’ • Standard work
… or Digital A cell can also be designed digital. Think of setting operators work in a flow by aligning systems. Workflow IT can help to let differ systems work together in a flow. Advanced Lean
efficiently? Total Work Content
Number of operators: Example
134 45 - 3
(after paper Kaizen)
Takt Time – buffer for variance
= 3.2 operators Lean Option
Option A Balance the line
Takt Time 45 sec.
45
Option B
• Maximize operator work.
Lean Option
• Let Op. 4 do other things
Buffer for variance
Continuous Improving
30
• More variance reduction, reduces buffer.
15
• Eliminate by reducing more waste.
0 1
Advanced Lean
2
3
4
1
2
3
4
How will you distribute the work? What is the optimal way of distribution the work? There are a lot of way to distribute the work among operators, here two examples:
Specialize
Do it all 75
2x Takt Time
How will you design that in your physical or digital layout. Takt Time 38 sec.
E D B
H G F
A Incoming Forms
Advanced Lean
1 Out
2
60
H G F
H G F
E
E
30
D B
D B
15
A
A
0
1
2
45
Implementation Stages Implementing the Flow consists of four stages: 1.
Initial Process Design
2.
Mock-up
3.
Debugging (!)
4.
Sustaining the Flow
e t a t i c n o e s s m a e v s l s o e v n c i o r P
Paper Kaizen & Initial Process Design
Mock-up
Debugging
½-2 days
2-4 week s
Avoid making things permanent, until stage 4, because it is a real learning-by-doing implementation.
Advanced Lean
Sustaining
Stage 1 – Initial Process Design
The actual initial continuous flow design is not a bottom-up, self-directed team process. A small team should create the initial flow design by the steps presented in this training. Participants in this team: •
Leadership
•
Quality
•
IT (if important for design)
•
Someone from the process team
Process associates are involvement in the upcoming implementation stages.
Advanced Lean
Stage 2 – Mock-Up
The initial design represents theoretical ideas for creating cr eating continuous flow. Goal of the mock-up is to introduce process associates to the process design and to find improvement opportunities before the actual process is deployed. Show •
Goals
•
Layout of new process
•
Operator Balance Chart
•
New standard way of working (steps and visual overview)
Try to make improvements immediately during the mock-up as much as possible.
Advanced Lean
Stage 3 – Debugging
In this stage the process begins operating and is improved to the point where it can process items as designed.
Make sure that you can still meet customer demand during transition (temporary additional resources needed?) Involvement of quality and IT for kaizen opportunities until it operates as designed. The cell’s success is everyone’s responsibility. Implement improvement ideas quickly. Operator Balance Chart and the new standard way of working must be kept up to date. Do not underestimate the effect of transition on the process associates. It requires good change management. Mark milestones that prove you’re making progress. Near the end of debugging period the work elements should be carefully re-listed and re-timed.
Track progress on a dashboard. One by one the problems preventing the cell from meeting Takt Time should be identified and their causes eliminated. Advanced Lean
Debugging Checklist
Is there real one-piece flow? Can the process associate “make one, move one”? Are the items go through the cell in a flow?
Do process associates perform the work as specified in the operator balance chart and the new standard way of working? If not, why?
Do the team leader and supervisor understand their job responsibilities?
Does the information flow? Do the process associates, as sociates, team leader, and supervisor know: Takt Time, what to process, how many to process, how many items are done, what problems are occuring, etc..?
Are the system, item, and cell layout right?
Does the cell use the minimum amount of equipment and inventory?
Can the cell change over between different end items in time?
Does the cell reduce lead time?
Advanced Lean
Stage 4 – Sustaining
In this stage you move from the debugging phase into daily operation. Cells must start on time. Standard work, measurements and visual management should be put in place to control the continuous flow in the cell. It is rare to find a system that maintains m aintains a steady state. Things are either improving or slipping backward. So, the best way to maintain the continuous flow performance is to keep improving.. improving
Advanced Lean
Introduction to Pull Production T C P A E N G L
E
V I S I O N A
N
ENTERPRI SE Advanced Lean
What Is a Pull System ? A system in which each process takes what it needs from the preceding process when it needs it and in the exact amount needed. • Employs a variety of visual signaling devices and uses the concept of Kanban • Just-in-time focused • Controls production system and limits inventory • Simplifies or eliminates documentation
Customer pulls the flow Advanced Lean
What Is a Push System ? A system in which products are pushed through production or distribution, based on a schedule. • “Ready or not, here I come!” • Products are produced only when scheduled • Assumes receiving work centers will be ready for the products when they arrive • Output continues without regard to actual downstream needs • Response is delayed and the system disrupted due to shortinterval changes
Advanced Lean
Differences Between Push & Pull • Planning • Push: Work is completed based on a planning system • Pull: Work is completed based on authorization from downstream users
• Work Authorization • Push: Work is immediately sent to downstream user upon completion • Pull: Work is not forwarded to next operation until requested
Advanced Lean
Why Use Pull ? A conventional system, based on a schedule, generates unneeded inventory (overproduction) (overproduction) because true customer needs never fit perfectly with schedule. For the same reason, it can also generate shortages. Schedule : Customer need : Inventory :
SHORTAGE
SHORTAGE
Pull ensures best inventory control with high customer satisfaction
Advanced Lean
Why Use Pull ? Conventional ‘Push’ system : PROCESS #1
WIP = ? PROCESS #2
PROCESS #3
Breakdown
Yield=2/h RAW MATERIAL
Yield=1/h
Yield=2/h FINISHED GOODS
WORK IN PROCESS
Standard WIP = 3
Pull System : PROCESS #1
PROCESS #2
PROCESS #3
Breakdown
Yield=2/h RAW MATERIAL
Yield=1/h
Yield=2/h
WORK IN PROCESS
Pull improves work in process management
Advanced Lean
FINISHED GOODS
Pull Characte Characteristics ristics • Standardized application • Visibility • Simplicity • Standard lot sizes • Discipline • Versatility/Flexibility
Advanced Lean
How does Pull work ? Legend Supermarket
END CUSTOMER
Material Information 2
1
1
Sequence / Timing
9
2nd LEVEL SUPPLIER 10
1st LEVEL SUPPLIER
9
2nd LEVEL SUPPLIER 10
PROCESS #3
PROCESS #2 3
PROCESS #1 4
5
9
2nd LEVEL SUPPLIER 8
Advanced Lean
7
6
10
How does Pull work ?
Min/Max is the most often used methodology to manage supermarket/buffer inventory level.
Pull
Max>
Pull Pull
Replenish Min>
High performance companies use Kanban to communicate needs to preceding process.
Advanced Lean
Heijunka Heijunka is the foundation of the Toyota Production system, and is the process of leveling and sequencing an operation. There are three main elements of Heijunka… 2.
Leveli Leveling: ng: Overal Overalll level leveling ing of a proc process ess to redu reduce ce varia variatio tion n in output output
3.
Sequen Sequencin cing: g: Manag Managing ing the order order in which which work work is proc process essed ed (Mixed (Mixed Production)
3.
Stabi Stabilit lity y or or Stan Standa dard rd Work: Work: Reduce Reduce proces process s variat variation ion Customer Demand
H e i j u n k a
Leveling
Toyota Production System e
m i T n i t s u J
a k o d i J Heijunka
Reduction in variation experienced by the customer Advanced Lean
Kanban A Kanban is a signal used by a downstream operation to request a material ma terial replenishment Kanban
Supplying Process
Using Process Required Part/ material
q
q
Cards Carts
q
q
Bins Labels
Kanbans are used to signal the supplying process that more material is needed Advanced Lean
Jidoka Jidoka allows machines/processes machines/processes to operate autonomously by shutting down automatically if an abnormality abnormality occurs. occurs. This prevents prevents defective products from passing to the next process. There are two main elements of Jidoka… •
Autonomation: Automation with human intelligence – operate autonomously
•
Stop at Every Abnormality
Abnormal
Toyota Production System e
m i T n i t s u J
a k o d i J Heijunka
Fix the process (problem) before moving on Advanced Lean
• Lean Overview • Lean Methodology • Lean Toolkit • Lean Deployment • Lean Glossary • Lean Resources
Advanced Lean
Deployment Lean Deployment Roadmap
1.
Set the strategy
2.
Find a change agent (how about you?)
3.
Get the knowledge
4.
Seize or create a crisis to motivate change
5.
Map your value streams, creating a future state plan
6.
Eliminate waste by executing the plan
7.
Expand the scope to other areas
Don’t Wait!! – “Opportunities multiply as they are seized”
Advanced Lean
Lean Deployment Investment Required Expense 5% Technical 30%
Cultural 65%
“The Soft Stuff is the Hard Stuff” Advanced Lean
Lean Deployment Key factors for Success 1.
Leadership commitment
2.
Ramp up with results
3.
Consistency of purpose
4.
Knowledge/Training
5.
Wide spread Communication
6.
Change management
7.
Team responsibility
8.
Metrics
9.
Reward and recognition
10.
Roadmap for Execution (Discipline)
11.
Balance between short term and long term
12.
Best practice sharing (Community)
13.
Value Stream Management
“Don’t be afraid to give up the good for the great!” Advanced Lean
Lean Deployment Kaizen: Change for the better • Continuous incremental improvement • Continuous
≠
slow
• Data driven: visual and quantitative • Bias for action • Does not cost money • Absolute intolerance for waste
Kaizen = Action Work Out (AWO) at GE Advanced Lean
Lean Deployment Kaikaku Vision Kaizen = Evolutionary Change Kaikaku = Revolutionary Change t n e m e v o r p m I
e n K a i z
e n K a i z
u k a k i a K
u k a k i a K e n K a i z
Time
Need Both Kaizen and Kaikaku!! Advanced Lean
u k a k i a K
n i z e a K
Lean Deployment Value
Value Streams
Flow Fl ow
Pull
Perf Pe rfec ecti tion on
PROCESS Lean (Elimination of Waste) Fron t Line s
Senio r Mgmt FLOW Lean . (Flow and Pull Improvement)
Process Lean • Lean for waste elimination & process efficiency • Empowered teams for speed of execution • Tap knowledge residing in grass root level . •Simple Communication
Focus
Flow Lean • Focuses establishing lean workflow Use of Technology for flow Wing to wing improvements Establish Pull With customer involvement Six Sigma for complex problems
Responsibilities clearly demarcated d emarcated Advanced Lean
Lean Deployment Why some companies fail? 1.
Too busy managing day-to-day – no time for continuous improvement and organizational organizational learning
2.
Belief that past strategies and approaches will continue to be effective in the future
3.
Management Management through control and efficiency
4.
Organizing and managing through departments
5.
Using people as operational labor, not operational experts
6.
Let Lean Thinking be perceived as a downsizing exercise
Important to be wary of the above factors Advanced Lean
Agenda • Lean Overview • Lean Methodology • Lean Toolkit • Lean Deployment • Lean Resources
Applying the right tools at the right stage Advanced Lean
Lean Resources For all references on Lean training material, Lean Initiatives, Genpact Project examples, visit the Lean Community on the Genpact Support Central http://gecishome.gecis.ge.com/portal/page?_pageid =33,872304&_dad=portal&_schema=PORTAL
y r o o t i s o p e R n a L e Advanced Lean
ean Rewards & Recognitions
Got any Lean Improvements….. Upload
it onto the Lean Workflow
All
approved Team & Individual ideas win Cheers
Advanced Lean
Closing Words Many unidentified problem areas exists within your processes
Lean methodology helps exposing those problem areas ~ Creating opportunity for improvement
Implementation is the key Advanced Lean
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