JCA resource adapters are hosted by application servers that control their life cycle through a set of Service Provider Interfaces (SPI) defined by JCA specifications as System Contracts.

JCA资源适配器由应用服务器承载，这些应用服务器通过JCA规范作为系统协议定义的一组Service Provider Interfaces (SPI)来控制资源适配器的生命周期。

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The system shall be installed and constructed in compliance with relevant IEC or China national standards or specifications. Power, control, and signal cables shall be wired separately.

系统安装、施工应符合相应的IEC国际标准或中国国家标准规范。所有的动力电缆、控制电缆和信号电缆布线要分开。

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For example, for information technology systems, a change control system can include the specifications scripts, source code, data definition language, etc.

例如，对于信息技术系统而言，变更控制系统可以包括每一软件组件的技术规定说明书(脚本、源代码、数据定义语言等)。

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