1 Purpose

Understanding fool-proof meaning, and learning how to use "Fool-proof" principle in our work, in order to avoid the error occurred, then to "put the first work done on the" realm.

Add the following things into boxes
In this example above, I believe everyone will do right. It is impossible to make mistakes, because different shapes simply do not take into account.

In our daily life, sometimes rush to get up and go to school or work, then found out that forget tickets, keys, money, documents, etc. How, forgetting to bring such things matter how much we all have experience. In order to prevent the recurrence of, some people have formed good living habits, that is, every night before bed; things will concentrate on pre-pre-bedside or in advance on the next day, wear clothes or official bag. So as long as form habits a long time ago to take or wear clothes, things will never forget. This is also the practice of "Fool-proof," the concept of extended use.
        
Fool-proof meant simply that is how to prevent mistakes in the way. Usually the weakness of human nature always blame the occurrence of an error, rather than use their brains to think about how to design some way to avoid the mistake occurred. This is also no wonder, because we bear the burden of history that is "people are not saints, who have no mistakes." In fact, many people have misunderstood the meaning of this remark, it as a "done nothing wrong is a normal phenomenon should have" a negative sense. In fact, the positive significance of this statement is to encourage I "Do not be afraid to turn over, a mistake should be a thorough review of efforts to turn over."

2 Significance
Fool-proof, its meaning is to prevent fool people doing the wrong things. That is to say, even the dopey things people will not mistake the design method; it is also known as Fool-clever law.
Narrow: how to design something so that the error will not happen.
General: How to design a thing due to the occurrence of errors to a minimum level.

Therefore, the more specific "Fool-proof" is:
1. Some people have even negligence would not have happened the wrong tectonic ─do not need attention.
2. With the structure stranger can do without error ─do not need experience and intuition
3 with regardless of who he is or when the work will not go wrong ─the construction does not require a high degree of expertise and skills.

3 Functions
1. Positive: to make any mistakes, will never happen.
2. Negative: the opportunity to make mistakes to a minimum.

4 Application scope
Whether any work is in the mechanical operation, product use and handling of instruments can be applied to.

5 Basic principles
In "Fool-proof Act", the following four principles can be used as reference:
(1)So that the operation moves easily
Difficult to observe, difficult to take and difficult to move, and other operations that become difficult, become easy to make mistakes and fatigue. Color makes easy to distinguish, or to enlarge marked, or with the handle makes easy to take, or handling equipment used to move easily.