As a standalone use case model is frequently created per problem domain, and consequently, application development project, the enterprise-wide big picture gets blurred in many cases.
由于每个问题域常常都创建单独的用况模型，因此，应用程序开发项目，这个企业的大方向在许多情况下变得模糊。
The domain model is useful, even if you do not produce business use case realizations.
域模型很有用，即使你不提出业务用例实现。
You have to evaluate the use-case model with respect to some frame of reference, such as business needs, business domain, and so on.
你必须应用一些参考框架来评价用例模型，例如业务要求，业务领域，等等。
In the requirement analysis phase, the article briefly introduced the concept of requirement analysis, discussed two main requirement analysis technologies - use case model and domain model.
在需求分析部分，简要介绍了需求分析的概念，讨论了两种主要的需求分析技术——用例模型和领域模型。
In the requirement analysis phase, the article briefly introduced the concept of requirement analysis, discussed two main requirement analysis technologies - use case model and domain model.
在需求分析部分，简要介绍了需求分析的概念，讨论了两种主要的需求分析技术——用例模型和领域模型。
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