要求编程语言尽量接近领域模型
Making the programming language follow the domain model more closely
领域模型用于建立系统的边界和概念。
The domain model is used to establish the boundary and concepts of the system.
建立领域模型的作用域。
图3：编制所支持的业务过程和领域模型。
Figure 3: Documenting the supported business process and the domain model.
领域模型可以视为所构建系统的概念模型。
A domain model can be thought of as a conceptual model of the system being built.
业务实体和领域模型。
领域模型——允许为业务定义特定的数据类型。
Domain Models - Allow you to define specific data types for your business.
它允许把应用对象的领域模型映射到搜索引擎。
It allows to map the application object domain model into the search engine. The following is an example of the Author class, with OSEM definitions using annotations.
领域模型还帮助标识这些实体的属性和重要方法。
The domain model also helps identify the attributes and important methods of those entities.
它还引入了针对领域模型和可视化模型的交换格式。
It introduces interchange formats, for domain models as well as visual models.
图3：领域模型——表示交易过程上下文的活动图。
Figure 3: Domain model — activity diagram showing context for trade processing.
在问题专家的参与下回顾和确认领域模型总是明智的。
It is always wise to review and validate a domain model with subject matter experts.
本文讨论应用于不同行业的许多领域模型的最佳实践。
This article covers best practices that apply to many domain models across industries.
这是实现领域模型的一种方法，但不一定是唯一的方法。
This is one way to realize the domain model, but not necessarily the only way.
这种着眼于领域模型的方法与领域驱动设计有着相似之处。
This focus on the domain model draws some parallels to Domain-Driven design.
所以，BPEL可能会很容易让你的领域模型信息支离破碎。
So BPEL seems to make it easy to get your domain model information partitioned.
领域模型把应用划分成三个部分：表现层，应用层和数据层。
The Domain Model divides into three portions: a presentation tier, an application tier, and a data tier.
本文使用一个领域模型示例，一些读者可能很熟悉这个模型。
A sample domain model is used throughout this article, which might be familiar to some readers.
图13显示了概念性的数据模型(有时候也称为领域模型)。
Figure 13 shows the data model from a conceptual level (also sometimes referred to as a domain model).
在后台缺乏坚实的领域模型和实现的条件下，SOA实现是否可以成功？
Can a SOA implementation be successful without a solid domain model and implementation in the back-end?
这里提供的最佳实践有助于产生更加一致、可重用且可维护的领域模型。
The best practices we present here can lead to a more consistent, reusable, and maintainable domain model.
领域模型展示了主要商业实体，它们的功能责任，以及实体之间的关系。
The domain model typically shows the major business entities, their functional responsibilities, and the relationships among the entities.
Compass提供了非常灵活的机制来把领域模型映射到搜索引擎中。
Compass provides a very flexible mechanism for mapping the domain model into the search engine.
所有业务用例及它们关系的总和组成了领域模型，领域模型描述了问题域。
The sum of all the business entities and their relationships constitute the domain model, which describes the problem domain.
到目前为止，已经介绍了逻辑数据模型、领域模型和物理数据模型的概念。
You have so far seen the concept of logical data models, domain models, and physical data models.
本系列后面的教程将详细地说明如何从此领域模型派生出体系结构中的部件。
Later tutorials in this series will explain exactly how to go about deriving parts in your architecture from this domain model.
总之，我们可以构建系统打算支持的业务过程的表示，以及推测的领域模型。
In short, we can build a representation of the business process the system is intended to support as well as a tentative domain model.
第2部分更深入地讨论这里介绍的一些概念，还要讨论领域模型中的性能调优。
Part 2 focuses in more depth on some of the concepts we discuss here and also covers performance tuning in the domain model.
BPEL引擎需要维护的数据和领域模型(如顾客、客户、提供商等等)有关。
The data that the BPEL engine needs to maintain relates to the domain models like customers, clients, suppliers, products and so on.
约束是定义在一个bean（领域对象）中的，因此校验逻辑离领域模型最近。
The constraints are defined in the bean (domain object) so the validation logic is close to the domain model.
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