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Determine The Root Cause123

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Determine The Root Cause: 5 Whys

The 5 Whys is a technique used in the Analyze phase of the Six Sigma DMAIC

methodology. 5个为什么是运用于六西格玛方法论的分析阶段

The 5 Whys is a great Six Sigma tool that doesn't involve a statistical hypothesis and

in many cases can be completed without a data collection plan. 5个为什么是一个不包含统计假设和数据收集计划很好的六西格玛工具

Asking "Why?" may be a favorite technique of your three year old child in driving you

crazy,but it could teach you a valuable Six Sigma quality lesson. 问“问什么”可能是你三岁小孩在你忙碌时最喜爱问的问题，但是它能教导你有价值的六西格玛质量部分

The 5 Whys is a technique used in the Analyze phase of the Six Sigma DMAIC

methodology. It's a great Six Sigma tool that doesn't involve data segmentation,

hypothesis testing, regression or other advanced statistical tools, and in many cases can

be completed without a data collection plan.

By repeatedly asking the question "Why" (five is a good rule of thumb), you can peel away

the layers of symptoms which can lead to the root cause of a problem. 对问题进行逆行询问“问什么”就会破除表象问题而找出导致根本原因的问题Very often the ostensible reason

for a problem will lead you to another question.一个问题众多的表面原因将会引导你进入另一问题Although this technique is called "5 Whys," you may find that you will need to ask

the question fewer or more times than five before you find the issue related to a problem.

Benefits Of The 5 Whys5个为什么的益处

Help identify the root cause of a problem. 帮助鉴别问题的根本原因

Determine the relationship between different root causes of a problem. 判定问题多个根本原因之间的联系

One of the simplest tools; easy to complete without statistical analysis. 最简单的工具之一，容易和统计分析区分

When Is 5 Whys Most Useful?什么时候最适合使用5个为什么

When problems involve human factors or interactions.

In day-to-day business life; can be used within or without a Six Sigma project.

How To Complete The 5 Whys

1. Write down the specific problem. Writing the issue helps you formalize the problem and

describe it completely. It also helps a team focus on the same problem.

2. Ask Why the problem happens and write the answer down below the problem.

3. If the answer you just provided doesn't identify the root cause of the problem that you

wrote down in step 1, ask Why again and write that answer down.

4. Loop back to step 3 until the team is in agreement that the problem's root cause is

identified. Again, this may take fewer or more times than five Whys.

5 Whys Examples

Problem Statement: Customers are unhappy because they are being shipped products

that don't meet their specifications. 1. Why are customers being shipped bad products?

- Because manufacturing built the products to a specification that is different from what

the customer and the sales person agreed to.

2. Why did manufacturing build the products to a different specification than that of sales?

- Because the sales person expedites work on the shop floor by calling the head of

manufacturing directly to begin work. An error happened when the specifications were

being communicated or written down.

3. Why does the sales person call the head of manufacturing directly to start work instead

of following the procedure established in the company?

- Because the "start work" form requires the sales director's approval before work can

begin and slows the manufacturing process (or stops it when the director is out of the

office).

4. Why does the form contain an approval for the sales director?

- Because the sales director needs to be continually updated on sales for discussions

with the CEO.

In this case only four Whys were required to find out that a non-value added signature

authority is helping to cause a process breakdown.

Let's take a look at a slightly more humorous example modified from Marc R.'s posting of

5 Whys in the iSixSigma Dictionary.

Problem Statement: You are on your way home from work and your car stops in the

middle of the road.

1. Why did your car stop?

- Because it ran out of gas.

2. Why did it run out of gas?

- Because I didn't buy any gas on my way to work.

3. Why didn't you buy any gas this morning?

- Because I didn't have any money.

4. Why didn't you have any money?

- Because I lost it all last night in a poker game.

5. Why did you lose your money in last night's poker game?

- Because I'm not very good at "bluffing" when I don't have a good hand.

As you can see, in both examples the final Why leads the team to a statement (root cause)

that the team can take action upon. It is much quicker to come up with a system that

keeps the sales director updated on recent sales or teach a person to "bluff" a hand than it

is to try to directly solve the stated problems above without further investigation.

5 Whys And The Fishbone Diagram

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产品rework处理流程

产品rework处理流程

产品rework处理流程

英文回答：

Product rework refers to the process of making

necessary changes or modifications to a product that does

not meet the required standards or specifications. It is an

essential step in ensuring the quality and functionality of

the product before it is released to the market. In this

response, I will outline the typical steps involved in a

product rework process.

1. Identification of the issue: The first step in the

rework process is to identify the specific issue or problem

with the product. This could be a defect, a malfunction, or

any other deviation from the desired standards. For example,

if a smartphone has a faulty camera, it needs to be

identified as the issue that requires rework.

2. Evaluation and analysis: Once the issue is

identified, a thorough evaluation and analysis need to be conducted to determine the root cause of the problem. This

降低趋势英语

降低趋势英语

降低趋势英语

Title: Strategies to Reverse a Downward Trend

Introduction:

In a constantly evolving world, individuals and organizations may

occasionally experience downward trends. Whether it is a decline

in personal motivation or a decrease in company profits, it is

crucial to identify and implement strategies to reverse these trends.

By adopting specific approaches, one can overcome obstacles and

work towards achieving a positive outcome. This article will

explore some effective strategies to reduce or reverse downward

trends.

1. Identify the root cause:

The first step in reversing a downward trend is to identify its root

cause. Without understanding the underlying issues, it is

impossible to implement effective solutions. Take the time to

thoroughly analyze the situation, conduct research, and gather

relevant data. This will enable you to pinpoint the areas that need

质量管理系统与CAPA

质量管理系统与CAPA

2011年

第一章

1.1 Quality System and CAPA

A quality system is a set of formalized business practices that define

management responsibilities for organizational structure, processes,

procedures, and resources needed to fulfill product or service requirements, customer satisfaction, and

continuous improvement.

a quality system dictates how quality policies are implemented and quality objectives are achieved.

A quality system dictates how quality policies are implemented.

The organization must continuously improve the effectiveness and efficacy of its QMS through the use of its quality policy, quality objectives, audit results, analysis of data, corrective and

preventive actions, and the management review processes.

Analyzing data is essential

Monitoring data

Measuring data

---------

--------> Customer satisfaction

地铁g4g6故障处理流程

地铁g4g6故障处理流程

地铁g4g6故障处理流程

As a city resident who relies on the subway system for daily

transportation, it is frustrating when there are unexpected

breakdowns like the one on the G4 and G6 lines. The inconvenience

caused by such malfunctions can disrupt our schedules, make us late

for work or important appointments, and lead to overcrowding on

alternative routes. It is essential that the authorities responsible for

the subway system have a clear and effective process in place to

handle these incidents promptly and efficiently.

作为一名依赖地铁系统进行日常交通的城市居民，像G4和G6线路出现故障这样的意外情况让人感到沮丧。这些故障造成的不便可能会打乱我们的时间表，使我们迟到上班或重要约会，并导致替代线路上的拥挤。地铁系统的责任部门必须建立明确而有效的流程，以便及时、高效地处理这些事件。

When a subway line experiences a malfunction, it is crucial that the

first responders on the scene are well-trained and equipped to

assess the situation quickly and accurately. They must be able to