QC7 skillEng

Group No.(K)=1+3.23log N Group distance(H)= (R)/(K)
E.To decide the demarcation lines of each column
162 165 137 145 127 125 157 150 147 152 125 165 L
132 150 162 150 145 157 167 142 137 156 132 167
- 1. Checklist
Checklist is made to easy make record and
check
the numbers . We can easy make use of the list and
Checklist-
-Why wethe need to use analyze numbers in the list.
TV customer complaint Investigation
Antenna director No picture Old antenna No sound No color Others Complaint No. 84 42 29 15 9 22 Accumulated ratio 42% 63% 77% 85% 89% 100%
- 4. Scatter Chart
To present the result by X axis, the cause by Y axis , and mark the data with point inside related,we call it scatter chart.
-How to make it-
145 160 167 146 142 139 120 158 148 140 120 167
142 144 158 143 147 153 159 154 170 164 142 170 S
151 147 144 142 142 127 162 159 140 142 127 162
146 139 140 141 131 138 127 134 150 148 127 150
.Show the variation between bad items
QC 7 Applied Skills
-How to make a Plato ChartA.To decide the harmful types of items
.Based on Result .Based on Reasons
Y
D.No Relation
Y Viscidity
Power
X
X
Turn round speed
Temperature
QC 7 Applied Skills
- 5. Column Chart
Separate several equal spaces on Y axis, show the time accumulation on regular space and measure the area of each column space.
-How to make itA.Data collection and record them on checklist B.To find the highest and lowest values C.To calculate the complete distance D.To E.To F.To G.To decide the groups no. and group distance decide the demarcation lines of each column find the midpoint of each group make the times distribution list
100 50 0
Accumlated Ratio
Complaint No.
QC 7 Applied Skills
- 3. Fish Bones Chart
Some specially related reasons cause the result. We manage these reason clearly ,try to find the relation between cause and effect. We draw the fish bones chart based on the above we mentioned.
-Why we use it.Show the focal point of the problems and reasons
.Show the sequence of problem and reason clearly
.Show the occupied ratio of the items .Estimated the effect after improvement
A.To Collect the corresponding data over 30 groups and record them on checklist.
B.Try to find the biggest and smallest numbers on list. C.To find the highest and lowest values and draw X axis. D.Mark the data with point to put inside the axises E.Write in the necessary items
QC 7 Applied Skills
-Scatter Chart studyA.Cause and effect right relation . B.Negative Relation
Y Y Viscidity X
Power
Turn round speed
X
Temperature
C.Curve Line Relation
chart by sequence
D.To make a accumulated ratio and link by line Accumulated Ratio= Total no. of items
*100
ห้องสมุดไป่ตู้
QC 7 Applied Skills
E.Record the theme and related data
QC 7 Applied Skills
-Types of Checklist.For Inspection (Reminder)
10000 KM Periodial Maintenance
Customer: Car No.: Car type: Date: Expense: Distance: Maker: Air Cleaner Machine Oil Elec. Tray Carburettor
No module
Environme nt No schedule
Man
Order infom. No clear
Materia l
Shippin cost No discussion
Quantity shortage
Distribution Delay
Low profit
Bad environment Low safety Storage
QC 7 Applied Skills
A.Data collection and record on checklist B.To find the highest (L) and lowest(S) values plete distance calculation
R=L-S
D.To decide the groups and group distance
.To Manage Frequently .To Investigae Specially .Data Collection
QC 7 Applied Skills
-Types of Checklist.For Record (Improvement)
Date NG Item Dimention 1 Defect Material Others A Dimention 2 Defect Material Others Dimention 1 Defect Material Others B Dimention 2 Defect Material Others Dimention Date Date Date Date Date Date
Storage battery Cooler box Pressure Tire Sparking plug Fan Belt Remark: Check
Adjustment
Change
QC 7 Applied Skills
- 2. Plato Chart
the data is collected for Plato Chart based on the types of harmful cause, bad process, no good location and customer complaint . It is to make a record items by sequence and to accumulate the ratio of these items.
126 142 130 144 135 156 147 142 144 148 126 156
131 129 146 143 134 128 140 146 150 157 128 157
132 154 138 144 135 162 160 145 145 151 132 162
-Why we need to use it.To manage the related problems .To find the real reasons .To find the way to solve it