# Problem Solving Processes

Problem Solving Processes
The Models…

Become Aware of problem

Six Sigma 6 西格瑪

Ford’s 8D

Chrysler Steps

Use Team Approach (1)

Deming

Steps

7D
Define 定義 (2)

Describe the Problem

P
Implement and Verify Interim (Containment) Actions

Define Problem

1 2 3

(3)

1
(4) Measure 量度 Define and Verify Root Causes Identify Potential Causes

Study Problem

a Analyze Causes n

Select Likely Causes

No Analysis 分析

Is the Pltential Cause a Root Causes?

Plan changes

4

Yes Identify Alternative Solutions

Do

Implement solution

Improve 改善

(5)

Verify Corrective Actions

Check

Check Result

5

(6) Control 控制

Implement Permanent Corrective Actions

Action
(7) Prevent Recurrence

Standardize Solution

6

(8)

Establish Future Plan 7

5

5-WHY ANALYSIS SHEET
5 個為什麼分析表
Failure Mode

Department/Area

Equipment

T O P C O N T R IB U T O R S P A R ET O

1 .2 1 0 .8 0 .6 0 .4 0 .2 0

0

0 .2

0 .4

0 .6

0 .8

1

1 .2

WHY #1:

WHY #5:

WHY #2:

TEMPORARY COUNTERMEASURES

Date ________

WHY #3:

FINAL COUNTERMEASURE -PERMANENT CORRECTIVE ACTION

Name ________ Date _________

WHY #4:
VERIFICATION: 查證 No Recurrence in Three Months? TBD Date______ Single-Point Lesson? Date________ Do The 5 WHY’S MAKE SENSE WHEN READ BACKWRD?

Note: Continue on separate page if 5-Why are not enough to determine root cause (如果根本問題不止 5 個,增加此表)

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5 Why Problem Solving Process
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(2) 1980 1982 1983 1984 KI Wing Wah TSANG Yok Sing LEUNG Koon Shing YUE Kwok Choy 1986 1987 1989 1991 Processes in mathematics problem solving The ...
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Page 4 5-WHY PROBLEM SOLVING PROCESS 5 WHY CAUSE INVESTIGATION Abnormal Occurrence Why? (cause/effect relationship) C C C C Why? Direct Cause (cause/...
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