Messaging: two systems connect to a common messaging system and exchange data and invoke behavior using messages.
消息：两个系统连接到一个公用的消息系统，互相交换数据，并利用消息调用行为。
2
Under the covers, an SAP system has a common kernel plus business process specific data structures (business objects) and processing logic on top of it.
真实的情况是，SAP 系统拥有一个附带业务流程特定数据结构（业务对象）的通用内核并在其上处理逻辑。
3
IDML USES a commondata model which standardizes how system solutions and technologies represent resources and relationships.