At its core, OSGi is a component and service model, as illustrated in Figure 1.
在核心，OSGi是一个组件和服务模型，如图1所示。
This was an important distinction to help users understand the relationship between Component and service.
这对于帮助用户理解组件和服务的关系是很重要的。
Then the function, architecture and executing mechanism of service component and service framework is presented. The analysis of simplicity and high efficiency are following.
然后阐述了业务框架的功能结构，以及业务的体系结构和运行机制，分析了其简单性和高效性。
However, if each layer is represented by more than one component, they can be executed in parallel and service new requests.
然而，如果每个层次通过多个组件来表示，它们就能够并行执行并且为新请求提供服务。
While the concepts of Service Component Architecture and Business Objects are new, the implementation is standards based.
虽然服务组件体系结构和业务对象的概念是新的，但是实现是以标准为基础的。
You must ensure there are no unacceptable dependencies of one service component for other components and remove all redundancies.
您必须要确保一个服务组件对其他组件不存在不可接受的依赖项并删除所有依赖项。
However, OO still is a valuable approach for design of the underlying class and component structure within a defined service.
然而，对于设计已定义的服务中的底层类和组件结构，OO仍然是一种有价值的方法。
He is currently working on SOA and in particular on the Service Component Architecture specifications.
他目前正从事SOA方面的工作，并参与了服务组件架构规范的工作。
For more detailed information about the definitions of SCA composite, service, and component, refer to the SCA specification (see Resources).
有关SCA组合、服务和组件的定义的更多信息，请参考sca规范(请参见参考资料)。
A service component interacts with external partners via imports and exports.
服务组件通过导入和导出与外部合作伙伴交互。
The business delegate component invokes the service and wraps any return value as a model object.
业务委派组件调用该服务，并将任何返回值打包为模型对象。
Two sources were consulted during discovery: the local "repository" of services, which was managed by the component configurator implementation, and a "service registry" in a well-known location.
在发现期间查询了两个来源：由组件配置器实现进行管理的本地服务“存储库”，以及位于一个已知位置的“服务注册中心”。
When a service component is invoked asynchronously, the client and service provider are executed in different threads, and error conditions can occur in either thread.
当异步调用服务组件时，客户端和服务提供程序是在不同的线程中执行的，并且错误条件可能在任一线程中发生。
The service analysis model represents the data structures for service and component specification.
服务分析模型表示服务和组件规范的数据结构。
Finally, you deploy this component and tell the service consumer to use the new endpoint address.
最后，部署此组件，并告知服务使用者使用新端点地址。
This component takes the service request and invokes the consolidation process.
该组件接收服务请求，并调用整合过程。
SCA exports — Expose an SCA service component or mediation flow component in a module and make it accessible to service requesters external to the mediation module.
SCA导出——公开模块中的SCA服务组件或中介流组件，并使得该中介模块外部的服务请求者可以访问它。
When a service component is invoked synchronously, both the client and the service provider execute in the same thread.
当同步调用服务组件时，客户端和服务提供程序在同一线程中执行。
If the service goes away, the component is deactivated; and if a new service arrives, then a new instance is created and the service re-bound.
如果服务不可用了，组件也就失效了；如果一个新服务出现，那么就创建一个新的实例，并将该服务重新绑定。
When deployment code is generated for the BPEL process, the component files of the process and the service are wired together.
当BPEL流程的部署代码生成后，流程和服务的组件文件便 连接在一起。
SCA imports of an external service — Enable a mediation component or an SCA service component in a mediation module to reference and invoke a service external to the module.
外部服务的SCA导入——允许中介模块中的中介组件或SCA服务组件引用和调用该模块的外部服务。
When a component calls a service and the service is unavailable, the runtime errors are thrown.
当一个组件调用一个服务、而该服务又不可用时，将抛出运行时错误。
Every single component, service and asset matters.
每件事都很重要，包括每个组件，服务和资产。
However, SCA service clients and component implementations also use J2SE 1.4.
不过，SCA服务客户机和组件实现也可使用J2SE 1.4。
Why would you use Service Component Architecture and Business Objects with WebSphere Process Server?
为什么要在WebSphere Process Server 中使用服务组件体系结构和业务对象？
Familiarity with Service Component Architecture (SCA) and WebSphere business processes are assumed.
这里假设您熟悉服务组件体系结构(SCA)和WebSphere业务流程。
The OMG currently offers three profiles: the Default profile, the Default Component profile, and the Default Web Service profile.
OMG目前提供三种概要文件：默认概要文件，默认组件概要文件，以及默认Web服务概要文件。
WebSphere ESB and Service Component Architecture
WebSphereESB和服务组件体系结构
When the new window opens, scroll down to Service Component Architecture and expand the folder, as shown in Figure 10.
新的窗口打开时，向下滚动到Service ComponentArchitecture并展开该文件夹，如图10所示。
The Integration Test Client appears. It lists all the component services and corresponding service operations defined in the module.
IntegrationTestClient出现，它列出了在模块中定义的所有组件服务和相应的服务操作。
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