3.4、假冒的零件

通过未授权的复制、模仿、替代或者改装零件的方式（如材料、零件或组件），故意误导这是一个原始或者授权厂家指定的真品。

注：假冒的零件可能包括但不限于:假的标识或标签、等级、序列号、日期代码、文件、或者性能特性。

3.2、关键项目

对产品和服务的提供和使用有重要影响的项目(如功能、零件、软件、特性、过程),包括安全、性能、形状、安装、功能,、可生产性、使用寿命等，需要特定的措施以保证能充分地管理。关键项目举例如安全关键项目、破裂关键项目、任务关键项目、关键特性等。

3.3、关键特性

是一种属性或特征，其变化将对产品安装、形状、功能、性能、使用寿命或可制造性产生重大影响，因而需要采取特殊措施对其变化进行控制。

3.6、产品安全

在没有导致人员伤害或财产损失的风险到不可接受情况下，产品能履行其设计或者期待的用途。

3.4、Counterfeit Part

An unauthorized copy, imitation, substitute, or modified part (e.g., material, part, component), which is knowingly misrepresented as a specified genuine part of an original or authorized manufacturer.

NOTE: Examples of a counterfeit part can include, but are not limited to, the false identification of marking or labeling, grade, serial number, date code, documentation, or performance characteristics.

3.2、Critical Items

Those items (e.g., functions, parts, software, characteristics, processes. having significant effect on the provision and use of the products and services; including safety, performance, form, fit, function, producibility, service life, etc.; that require specific actions to ensure they are adequately managed. Examples of critical items include safety critical items, fracture critical items, mission critical items, key characteristics, etc.

3.3、Key Characteristic

An attribute or feature whose variation has a significant effect on product fit, form, function, performance, service life, or producibility, that requires specific actions for the purpose of controlling variation.

3.6、Product Safety

Maintaining the state of product so that it is able to perform to its designed or intended purpose without causing unacceptable risk of harm to persons or damage to property.