Open architecture for converting the functions of the R/3 System to an integrated package of modularized components. Components can be mixed together with each other and with compatible components from other manufacturers.
----------------------分隔线上面是 SAP 标准文档中提供的说明
分隔线下面是我的翻译
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把 R/3 系统的功能转化成一个集成的模块化组件包的开放架构。组件可以互相混合在一起,甚至是跟来自其他厂商的兼容组件混合。