A service where a legacy application or service already exists.
与已经存在的遗留应用程序或服务相关的服务。
Typically a legacy application already exists that provides the core functionality.
通常已经存在提供核心功能的遗留应用程序。
Part 3 of this series also showed how a legacy application can be surfaced using a top-down approach.
本系列的第3部分还介绍了如何使用自顶向下方法将遗留应用程序作为服务公开。
A legacy application code base represents a significant investment of time and money for a developer.
现有的应用程序代码代表了一个开发者在时间和金钱上的大量投入。
External stored procedures are often used to access legacy data stores and legacy application systems.
常常使用外部存储过程访问遗留数据存储和遗留应用程序系统。
We created a service wrapper which uses the WebSphere MQ protocol to connect to that legacy application.
我们创建一个服务封装器，其使用WebSphereMQ协议与以前的应用程序相连。
Let's assume an enterprise legacy application (see Figure 1) is divided into modular components of business processes.
假设企业以前的应用程序(参见图1)被分成业务流程的模块化组件。
This is a classic example of a legacy application, and it provides the core functionality necessary to provision a service.
这是遗留应用程序的典型示例，提供了提供服务时所必需的核心功能。
A person logs on to a legacy application to find information to add to the customer request record before it can be processed.
一个人员登录到遗留应用程序查找信息，并将信息添加到客户请求记录之后才能进行处理。
You can specify the type of service without customizing code for the Web service and without recompiling the legacy application.
您可以指定服务的类型，而不用自定义Web服务的代码，也不用重新编译以前的应用程序。
The other side of the wrapper -- the one that invokes and returns from the legacy application itself -- typically must be hand coded.
包装程序的另一部分（即对遗留应用程序本身进行调用并返回的那一部分）通常必须手工编码。
The single-threaded nature of legacy application, like that just mentioned, is an example of a technical limitation of a legacy system.
如刚刚提到的，遗留应用程序的单线程特性就是遗留系统技术限制的一个例子。
A major division of a large company (an important client for TCS) has a legacy application for which a browser-based user interface needs to be developed.
一家大公司(TCS的一个重要客户)的一个主要部门有个遗留应用程序，需要为之开发一个基于浏览器的用户界面。
Categorize all the legacy application in terms of the business returns they provide and maintenance costs the organization would have to incur to sustain it.
按照其提供的业务回报和组织为了继续使用其而产生的维护成本对所有遗留应用程序进行分类。
Now we must expose the legacy application as a service. In our recipe this is an example of a four-step process of reusing an existing service or application.
现在我们必须将此遗留应用程序作为服务公开。
Consider the case where a new Web application is to be deployed in an environment, but needs to link to a legacy application deployed in a separate physical location.
考虑这样一个情况，一个新的Web应用程序被部署到一个环境，但是需要连接到部署在一个分开的物理位置上的遗留应用程序。
There are no green field projects in the real-world as legacy applications (legacy application is a synonym for existing applications) always have to be taken into account.
在真实世界中，并没有全新的项目，必须始终考虑遗留系统(遗留系统是现有系统的同义词)。
Nonetheless, a review of the ODF specification shows that, rather than attempting to describe the behavior of a monolithic legacy application, it tries to describe the contents of documents.
尽管如此，浏览一下ODF规范会发现，它并没有尝试描述庞大的遗留应用程序的行为，而是注重描述文档的内容。
The core recommendation is for the company to retain the value of its current legacy application portfolio while gradually migrating to new technologies that promote a loosely coupled architecture.
核心建议是让公司在保留其当前遗留应用程序组合的价值的同时，逐渐地迁移到可促进松散耦合的体系结构的新技术。
A Legacy Application makes use of any number of Patterns, Application Frameworks, Component Libraries, and may make use of a Reference Architecture.
一个现有应用程序可以利用许多模式，应用程序框架，组件库，以及利用参考构架。
A Legacy Application makes use of any number of Patterns, Application Frameworks, Component Libraries, and may make use of a Reference Architecture.
一个现有应用程序可以利用许多模式，应用程序框架，组件库，以及利用参考构架。
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