Moreover, as it is composed of Data Objects, a Data Graph is serializable.
此外，由于数据图是由数据对象组成的，因此它是可序列化的。
SDO clients can traverse a data graph and read and modify its data objects.
SDO客户机可以遍历数据图，读取和修改数据图中的数据对象。
A data graph is a collection of tree-structured or graph-structured data objects.
数据图是树形结构或图形结构的数据对象的集合。
When retrieving data, mediators convert data from the repository into a data graph.
当检索数据时，中介器会将库中的数据转换为数据图。
Client applications query a data mediator service and get a data graph in response.
客户机应用程序将查询数据中介服务，并从响应中得到数据图。
Furthermore, a data graph can include objects representing data from different data sources.
此外，数据图可以包含表示不同数据源中数据的对象。
Obtain a data graph and populate it with the desired data from WebSphere Information Integrator.
获取数据图并用DB 2Information Integrator中的所需数据填充它。
A data graph is a collection of tree-structured objects that might be disconnected from the data source.
数据图就是一组可以从数据源中分离出来的树形结构的对象。
Instead, it accesses an intermediary called a data access service (DAS) and receives a data graph in response.
它访问一个叫做数据访问服务(data access service,DAS)的中介并接收响应中的数据图。
So far, you learned how to create metadata, then populate and access a data graph corresponding to the metadata.
到目前为止，您已经了解了如何创建元数据，然后填充和访问与元数据对应的数据图。
They will be deleted for you when you drop your client reference to them, and they are not connected to a data graph.
当丢弃对其的客户机引用且未连接到数据图时，会将其自动删除。
The DMS is a component that provides methods to populate a data Graph. It saves the changes back to the data source.
DMS是一种组件，它负责提供某些方法来组装数据图，也负责将数据更改保存回数据源。
SDO also provides a metadata API, which allows applications, tools, and frameworks to introspect the data model for a data graph.
SDO还提供了一个元数据api，允许应用程序、工具和框架对数据图形的数据模型进行自检。
Change summaries are contained by data graphs and are used to represent the changes that have been made to a data graph returned by the DMS.
变更摘要包含在数据图中，表示对DMS返回的数据图的修改。
A data graph contains a root data object, all of the root's associated data objects, and a change summary (more on change summaries in a moment).
数据图包含一个根数据对象、与根关联的所有数据对象和变更摘要(change summary，参见本文后面的叙述)。
According to Semantic Web theory, everything - whether an object or a data graph source (also an object) - has a Uniform Resource Identifier (URI).
根据语义web理论，一切内容—无论是对象还是数据图来源(也是一个对象)—都有统一资源标识符(Uniform Resource Identifier,URI)。
Designing a data graph could be the subject of another article on its own as there are many scenarios to consider when building access to a data source.
因为建立对数据源的访问要考虑很多种情况，设计数据图本身可以作为另一篇文章的主题。
Another task of the DMS (as defined in the EmployeeDataMediator interface) is to update backend data sources based on a data graph provided by the SDO client.
DMS的另一项任务(按照EmployeeDataMediator接口的定义)是根据SDO客户机提供的数据图更新后端数据源。
Doing this turns off change recording, thereby providing a summary of the modifications that were made to a data graph since beginLogging was called (typically since its creation).
这样将关闭变更记录，从而提供自beginlogging调用以来(通常在创建之后调用)对数据图所做修改的摘要。
As a DMS always returns the information in the same format (a data Graph), it hides the actual data storage and provides a level of abstraction between the SDO application and the EIS.
DMS总是以同一种格式(数据图)返回信息，它隐藏了实际的数据存储信息，在SDO应用程序和EIS之间提供了一层数据提取的功能。
Basically, when an SDO client needs to retrieve data, it USES the DMS to require a data graph. The DMS manages the data source access and creates a graph with the information received.
基本上，当一个SDO客户机需要检索数据时，它使用DMS来请求数据图，DMS负责管理对数据源的访问，并根据接收到的信息来创建一个图，通常这个图是一个分层的树结构，其中包含了几个数据对象。
An important part of SDO is to make data manipulation easier. So once a data Graph is constructed, it is important to be able to traverse the tree and to access its elements with the SDO API.
SDO有一个很重要的特点就是使数据操作变得更容易了，因此一旦构造好一个数据图，很重要的一点就是需要使用SDOAPI来遍历树结构，并访问其中的元素。
Under the disconnected data graphs architecture, a client retrieves a data graph from a data source, mutates the data graph, and can then apply the data graph changes back to the data source.
在断开连接的数据图形体系结构下，客户机将从数据源检索数据图，对数据图进行变异操作，然后将数据图更改应用回数据源。
Under the disconnected data graphs architecture, a client retrieves a data graph from a data source, changes the data graph, and can then apply the data graph updates back to the data source.
在断开连接的数据图表架构中，客户机从数据源检索数据图表、更改数据图表，然后将这些数据图表更新应用于数据源。
Client applications can query a DAS and get a data graph in response, modify the data graph and send the updated data graph to a DAS to have the changes applied to the original data source.
客户机应用程序可以查询DAS并得到数据图表作为响应，修改数据图表并向DAS发送更新的数据图表，以便将这些更改应用到原始数据源中。
A data object structure represents a graph that, in addition to hosting member elements, encapsulates references to type and usage metadata about each of these elements.
一个数据对象架构代表了一个图，除了成员元素，它还封装了对关于每一个元素类型及使用元数据的引用。
Profiling is a formal summary or analysis of data, often in the form of a graph or table, representing distinctive performance features or characteristics.
评测是表示不同性能特性和特征的数据的形式化总结或分析，它通常以图形和表的形式的出现。
Another important concept in the SDO architecture is the data graph, a structure that encapsulates a set of data objects.
SDO体系结构中的另一个重要概念是数据图，它是封装一组数据对象的结构。
Another important feature included in the data graph is a change summary that is used to log information about what data objects and properties in the graph have changed during processing.
数据图中的另一个重要功能是更改摘要，用于记录关于在处理过程中已经更改的图中的数据对象和属性的信息。
One of the powerful features of SDO is the flexibility applications have in how they access data within a graph.
SDO的强大功能之一是应用程序可以在图形中灵活地访问数据。
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