Object Type

Description created at definition time in the Business Object Builder of data (objects) used in the system. Examples: Documents (invoices, purchase requisitions, job applications, and so on), Master data (customer, material, vendor, and so on), and Movement data (order, quotation, and so on). Object types are described and implemented by specifying the following components: Basic data, Key fields, Attributes, Methods with parameters, result and exceptions, Events with parameters, and the Implementation program. The Business Object Repository provides a full directory of all object types. The object type must be defined before its data (objects) can be used in the system.

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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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在业务对象制作器里定义系统中使用的数据（对象）时创建的描述。例如：凭证（发票、采购请求、职位申请等），主数据（客户、物料、供应商等）、移动数据（订单、报价单等）。对象类型通过指定下列组件来描述和实现：基本数据、键字段、属性、方法及其参数、结果和异常、事件及其参数以及实现程序。业务对象知识库提供了所有对象类型的完整目录。对象类型必须在数据（对象）可以在系统中使用之前被定义。

转载于:https://www.cnblogs.com/qiangsheng/archive/2008/03/06/1093159.html