Business objects are the primary mechanism for representing business entities, enabling everything from a simple basic object with scalar properties to a large complex hierarchy or graph of objects.
业务对象是用于表示业务实体的主要机制，支持从具有标量属性的简单基本对象到大型复杂层次结构或对象图的任何实体。
Object changes contain references to data objects in the data graph whose properties have been modified, along with the property that was changed and the old value for that property.
对象变更包含数据图中属性已经被修改的那些数据对象的引用、被修改的属性和修改之前的属性值。
Another important feature included in the data graph is a change summary that is used to log information about what data objects and properties in the graph have changed during processing.
数据图中的另一个重要功能是更改摘要，用于记录关于在处理过程中已经更改的图中的数据对象和属性的信息。
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