名词解释：何为AI，AIS，AIA，这三者又有什么关系呢？

名词解释：何为AI，AIS，AIA，这三者又有什么关系呢？

大家来说说把

怎么没有人来解释下呢？
期待大家的回复

AI        授权检验师
AIA        授权认可的检验机构
AIS        主任授权检验师

大家可以参看质保手册里的解释~
至于什么关系，另请高手回答

我补充一下，说的不对的地方请大家帮忙指正，AI是受聘于AIA的，经过美国锅炉压力容器检验协会（NB）考核通过的人员，因ASME标准协会授权委托NB对AIA及AI进行考核，合格方可有资格行使检验师职权。而AI及AIA的工作就是推扩ASME标准、提供技术服务咨询、检验ASME钢印产品对标准的符合性。
AIS是直接受聘于ASME标准协会的具有更高水平和能力的专业技术人员，具了解中国人现有4名AIS。

是这样的吗？

谢谢你们的回答！学习了！

还以为楼主要解释的呢

AI monitored by AIS；
通俗讲AIS 是AI的师傅；
AI & AIS 都是AIA的员工；

AI:   Authorized Inspector
AIS: Authorized Inspector supervisor
AIA: Authorized Inspection Agency

The AI / AIS shall be in the regular employment of an AIA.

AIS have the overall responsibility for carrying out inspection activities and to monitor the performance of the AIs.

The inspection required by ASME BPVC shall be by an AI / ANI employed by an ASME accredited AIA, that is, the ins-
pection organization of a state or municipality of the United States, a Canadian province, or of an insurance company
authorized to write boiler and pressure vessel insurance. These AIs shall have been qualified by written examination un-
der the rules of any state of the United States or province of Canada which has adopted the Code.

As a condition of obtaining and maintaining a Certificate of Authorization to use the Certification Mark with the “x” ------
Designator, the Manufacturer or Assembler must have in force at all times, an inspection contract or agreement with an
AIA to provide inspection services.

学习了，那四个中国的AIS都是谁啊？