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Tools and Techniques
By
Dr. A. NITHYA
Why use tools?
• Measure
• Improve
What are they?
The seven basic tools according to Ishikawa are:
• Check sheets
• Flow charts
• Cause and effect diagram
• Scatter diagram
• Control chart
• Graphs & Histograms
• Pareto diagram
1.Check sheets
• What is a check sheet?
• A form or sheet used to record data.
• Tools for identifying
Function of Check Sheets
According to Ishikawa 1982, check sheets have
the following functions:
1. Production Process distribution checks
2. Defective item checks
3. Defective location checks
4. Defective cause checks
5. Check-up confirmation checks
6. Others
Example of a simple check sheet. (for
car valet operation)
Car type
Car registration
Ford Focus
W357 PHR
Interior vacuumed √
Upholstery cleaned √
Dash board cleaned √
De odorised √
Body washed √
Washed waxed & Polished √
Under car washed √
Wheels washed √
Tyres blacked √
Comments: Front bumper badly scratched on delivery, this
can not be covered
Performed / Checked by J Date 2 May 2008
Example of a simple process check
sheet. (attributes)
Model XYZC217 Batch
failures 1 2 3 4 5 6 7 8 9
1
0
Power up
1 2 1
Boot up
6 4 2 1 2
Sink test
2 1 1 1
Case damage
1 1 2
Keyboard damage
Monitor damaged
1 2
Bundled s/w included
3 1 3
Checked by
pj
a
m jj [j
l
m
l
m
r
m pj
a
m pj
Tally Lines
Complaints Tally Total
Poor Delivery IIII III 8
Incorrect Invoicing IIII 4
Poor service IIII IIII 10
Irresponsible II 2
Poor Packaging III 3
No qaulity II 2
Flowcharts
2. PROCESS MAPPING
• Process mapping is an essential first step.
• It identifies all of the process activities,
sequence and responsibilities.
• This can either be in a written format, or as a
flowchart.
Flowcharts
PROCESS MAPPING (Written format)
Enquiry handling
Activity Responsibility Associated documents
1. Customer enquiry
received and
logged onto system
Sales Director Customers enquiry
Customers drawing
Work instruction S10
2. Enquiry briefly
overviewed and
allocated to sales
estimator for
through.
Sales Director
3. If it cant be done,
return to customer
Sales Director Customers enquiry
Customers drawing
4. If it has been made
before, prepare a
new quote based on
previous job and
current pricing,
otherwise go to
step 10.
Sales Director Customers enquiry
Customers drawing
Previous job file
Current price list
5. Send to customer
for acceptance
Sales Director Quotation
6. Review quote Customer Quotation
7. Quote is acceptable Customer Quotation
8. Log as order and
create order
package
Quotation
Customer drawing
Work instruction S30
9. Pass to Production
control
Sales Director
Order package
10. Allocated to sales
estimator
Sales director Customers enquiry
Customers drawing
11. . Etc.
12.
13.
14.
15.
16.
Flowcharting
• Flowcharting is a graphical tool for identifying
processes.
• Constructing flowcharts leads to a better
understanding of processes.
• Better understanding of processes is a
essential for improvement
symbol
Event Symbol Description
operations It means an action
storage It is a stage of finished good
or raw material waiting for
action
Delay or
temporary
storage
It means process has
stopped due to same
reason or waiting for next
event
Symbol
Event Symbol Description
Transport Movement
Inspection Checking the Quality
& Quantity
Operation cum
Transport
Doing the work by
moving
Inspection cum
operation
Automatic process
Flowcharts
Some standard symbols
Start or end
An activity
a decision point in the process.
a point at which the flowchart connects
with another process.
An off page connection
All records are identified
FLOWCHART
SM01 Enquiry Handling / Quotation Process
Sales director Estimator
Customer
Customer sends
enquiry
Sales department
receives enquiry
Enquiry entered
into the electronic
Quote log &
Unique serial
number entered
Can this
enquiry be
Quoted ?
Enquiry allocated
to Estimator
No
Quote prepared
from Price guide
Quote customer
Customer
informed that we
are unable to
quote
No
Prepare Quote
Have the
item (s) been
made before?
Yes
Raise estimate
sheet & plan
process
Organize contract
review to cover
Quality
Contractual &
Manufacturing
aspects
Types of process chat or flow chart
• Outline process chart
• Two handled process chart
• Flow chart
Outline process chart
• Data are recorded by using
Two handled process chart
• LH RH
Flow chart

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Tools and techniques

  • 2. Why use tools? • Measure • Improve
  • 3. What are they? The seven basic tools according to Ishikawa are: • Check sheets • Flow charts • Cause and effect diagram • Scatter diagram • Control chart • Graphs & Histograms • Pareto diagram
  • 4. 1.Check sheets • What is a check sheet? • A form or sheet used to record data. • Tools for identifying
  • 5. Function of Check Sheets According to Ishikawa 1982, check sheets have the following functions: 1. Production Process distribution checks 2. Defective item checks 3. Defective location checks 4. Defective cause checks 5. Check-up confirmation checks 6. Others
  • 6. Example of a simple check sheet. (for car valet operation) Car type Car registration Ford Focus W357 PHR Interior vacuumed √ Upholstery cleaned √ Dash board cleaned √ De odorised √ Body washed √ Washed waxed & Polished √ Under car washed √ Wheels washed √ Tyres blacked √ Comments: Front bumper badly scratched on delivery, this can not be covered Performed / Checked by J Date 2 May 2008
  • 7. Example of a simple process check sheet. (attributes) Model XYZC217 Batch failures 1 2 3 4 5 6 7 8 9 1 0 Power up 1 2 1 Boot up 6 4 2 1 2 Sink test 2 1 1 1 Case damage 1 1 2 Keyboard damage Monitor damaged 1 2 Bundled s/w included 3 1 3 Checked by pj a m jj [j l m l m r m pj a m pj
  • 8. Tally Lines Complaints Tally Total Poor Delivery IIII III 8 Incorrect Invoicing IIII 4 Poor service IIII IIII 10 Irresponsible II 2 Poor Packaging III 3 No qaulity II 2
  • 9. Flowcharts 2. PROCESS MAPPING • Process mapping is an essential first step. • It identifies all of the process activities, sequence and responsibilities. • This can either be in a written format, or as a flowchart.
  • 10. Flowcharts PROCESS MAPPING (Written format) Enquiry handling Activity Responsibility Associated documents 1. Customer enquiry received and logged onto system Sales Director Customers enquiry Customers drawing Work instruction S10 2. Enquiry briefly overviewed and allocated to sales estimator for through. Sales Director 3. If it cant be done, return to customer Sales Director Customers enquiry Customers drawing 4. If it has been made before, prepare a new quote based on previous job and current pricing, otherwise go to step 10. Sales Director Customers enquiry Customers drawing Previous job file Current price list 5. Send to customer for acceptance Sales Director Quotation 6. Review quote Customer Quotation 7. Quote is acceptable Customer Quotation 8. Log as order and create order package Quotation Customer drawing Work instruction S30 9. Pass to Production control Sales Director Order package 10. Allocated to sales estimator Sales director Customers enquiry Customers drawing 11. . Etc. 12. 13. 14. 15. 16.
  • 11. Flowcharting • Flowcharting is a graphical tool for identifying processes. • Constructing flowcharts leads to a better understanding of processes. • Better understanding of processes is a essential for improvement
  • 12. symbol Event Symbol Description operations It means an action storage It is a stage of finished good or raw material waiting for action Delay or temporary storage It means process has stopped due to same reason or waiting for next event
  • 13. Symbol Event Symbol Description Transport Movement Inspection Checking the Quality & Quantity Operation cum Transport Doing the work by moving Inspection cum operation Automatic process
  • 14. Flowcharts Some standard symbols Start or end An activity a decision point in the process. a point at which the flowchart connects with another process. An off page connection All records are identified
  • 15. FLOWCHART SM01 Enquiry Handling / Quotation Process Sales director Estimator Customer Customer sends enquiry Sales department receives enquiry Enquiry entered into the electronic Quote log & Unique serial number entered Can this enquiry be Quoted ? Enquiry allocated to Estimator No Quote prepared from Price guide Quote customer Customer informed that we are unable to quote No Prepare Quote Have the item (s) been made before? Yes Raise estimate sheet & plan process Organize contract review to cover Quality Contractual & Manufacturing aspects
  • 16. Types of process chat or flow chart • Outline process chart • Two handled process chart • Flow chart
  • 17. Outline process chart • Data are recorded by using
  • 18. Two handled process chart • LH RH