业务实体层持久化并管理工作流对象。
Business entity layer stored and maintained business object.
尽管已经证实这种方法在几种上下文中是成功的，但是它的应用方式是在现有的SOA和中间件工具之上创建业务实体层。
While the approach has proven successful in several contexts, its application has taken the approach of creating a business entity layer on top of existing SOA and middleware tools.
语义/逻辑服务层描述一个通用业务模型，该模型定义不同种类的业务实体。
The Semantic/logical services layer describes a general purpose business model that defines different kinds of business entities.
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