它通过导航模型表示一个路径定义列表，如图5所示。
It represents a list that defines a path through the navigation model, as illustrated in Figure 5.
导航模型表示一些元素，这些元素用于构建可能呈现给门户用户的导航。
The navigation Model represents elements that are used to build the navigation possibilities that are presented to a portal user.
一般而言，成熟度模型表示一个成熟程度，用于评估当前成熟度状态并描绘目标成熟度状态。
In general, maturity models represent a scale for assessing the current state of maturity and depicting the target state of maturity.
这个数据模型表示一个常见的场景，在此场景中，XML 数据的一些部分常常被分解到关系结构中。
This data model represents a common scenario in which portions of XML data are often shredded into a relational structure.
但这一模型显然是非常简化的，即只用树上的一个分支来表示整个语言体系，不能公平对待该语言中的所有变体。
But it is obviously very simplified, having a whole language represented by just one branch on a tree doesn't really do justice to all the variations within that language.
树形模型是表示一个语言家族的发展并显示两种或更多语言的密切相关程度的一种便捷方式。
The tree model is a convenient way of representing the development of a language family and of showing how closely related two of more languages are.
以八叉剖分来建立一棵顶点树，用以表示整个网格模型的数据结构。
A vertex tree is built to represent the data structure of the models by octonary subdivision.
用于规范化消息模型的最常见的表示是一组XML模式。
The most common representation used for the canonical message model is a set of XML schemas.
现在，我们已经将传入的业务需求(如业务流程模型所示)表示为一组候选服务。
We have now expressed the incoming business requirements (as represented by the business process model) as a set of candidate services.
对于表示页面的每个内容节点，都有一个模型来表示该页面的布局(布局模型)。
For each content node that represents a page, a model exists that represents the layout of that page (the layout model).
通常，BPDM应该包括表示业务过程的模型和一个文件格式。
Mostly, BPDM should include a model for expressing business processes and a file format.
本文中的示例已经说明了将数据表示为rdf模型的一些效果，以及RDQL从这些模型中提取数据的灵活性。
The examples in this article have demonstrated some of the power of representing data as RDF models, and the flexibility of RDQL in extracting data from them.
您可能需要首先将几个这样的模型集成到一个全局模型中，以逻辑集成的方式表示源。
You might need to start by integrating several of these models into a global model representing the sources in a logically integrated way.
例如，您可以将已有的对象模型分类并且将每一个类型表示为一个事件。
For example, you can subclass your existing object model and represent each type as an event.
在这种方法中，我们通过考虑一个表示架构的模型的复杂应用程序用例来实际测试一个实现。
In this method, we actually test an implementation by considering a complex application use case which represents a model of the architecture.
此外，在一些情况下，你可以使用提示或者规则来添加一些模型，这可以帮助你将模型从一种表示法转换成为另一种表示法。
Furthermore, in some instances you can augment the models with hints, or rules, that assist in transforming them from one representation to another.
这些服务创建一个模型，表示层利用此模型来创建一个发送到客户机的视图。
These services create a model that the presentation tier consumes to create a view to send to a client.
不同类型模型之间的区别允许我们将软件和系统开发想象成为一系列在不同模型表示法之间的细化。
Distinguishing among different kinds of models allows us to think of software and system development as a series of refinements between different model representations.
它为数据模型提供了一个丰富的表示并支持语义化的查询。
It provides a rich representation of the data model that supports semantic query.
在这些模型表示法和支持的转换之下是一系列的元模型。
Underlying these model representations, and supporting the transformations, is a set of metamodels.
在“模型驱动的体系架构”方面，OMG提供了一个概念性的框架和一系列表示模型、模型关系和模型到模型转换的标准。
In what it calls "model driven architecture," the OMG has provided a conceptual framework and a set of standards to express models, model relationships, and model-to-model transformations.
就像uml模型是应用程序架构的抽象一样，数据模型表示信息模型的抽象。
Like UML models that are abstractions of the application architecture, data models represent the abstraction of the information model.
实际的实现代码对于不同的数据绑定几乎都是相同的，只需要根据生成的数据模型表示做一些微小的修改。
The actual implementation code is almost identical across the different data bindings, with only minor changes as needed for the generated application data model representations.
流程模型：流程模型实际就是用XML表示的一个对商业流程建模的指示性图表。
Flow model: the Flow model is the actual XML representation of the directed graph that models the business process.
RDF是一种规范，它为表示世界而定义了一个模型，并且采用一些语法来对这个模型进行序列化和交换。
RDF is a specification that defines a model for representing the world, and a syntax for serializing and exchanging that model.
也就是说，静态数据API只是数据模型的另一个表示形式。
In other words, a static data API is just another representation of the data model.
其中一个模型文件（称作基础模型） 表示更改之前的数据库。
One of the model files, known as the base model, represents the database before the change.
这一定义的第二方面说模型是一种 简化的表示。
The second aspect of the definition is that a model is a simplified representation.
图1显示了一个实例类模型，它表示一家拥有雇员和办公室的公司。
Figure 1 shows an example class model, which represents a company with employees and offices.
从用户界面的角度来看，所有这些视图都将同一“模型”(也就是一些文件)的表示可视化。
From a UI perspective, all these views are visualizing a representation of the same model, namely some files.
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