例如，一个企业可能拥有一个遗留系统或者大型主机需要整合到现有的同步环境中。
For example, an enterprise may have legacy systems or mainframes that need to be integrated into the existing synchronization environment.
尽管数据整合模式无法单独处理应用程序迁移，但它是一个非常重要的组件，可以将数据从遗留系统移动到未来的平台。
Although the data consolidation pattern cannot solely address application migration, it is an important component in that it can move the data from the legacy system to the future platform.
因此，“遗留”在此上下文中并不是一个有效的术语，因为大型机系统是IT 方面广为应用的设备，当前约占全球大型机上数据的 80%或更多。
So, "legacy" is not really a valid term in this context, since mainframe systems are the workhorses of IT; current estimates place 80% or more of the world’s current data on mainframes.
一个遗留的后端系统，运行在大型机上，是实际的订单管理和存储位置。
A legacy back-end system, running on a mainframe, where the actual orders are managed and stored.
一个原因是要与旧系统兼容，正如我们要编写与遗留应用程序兼容的代码一样。
One reason is compatibility with older systems, similar to our writing code to be compatible with legacy applications.
例如，对于一个新系统项目而言，你在GDD环境中所选择的管理需求变更的方法，与关联于第三方的遗留维护合同的管理需求变更方的法将有很大的不同。
For example, the way you choose to manage change to requirements in a GDD environment could differ greatly for a new system project compared to a legacy maintenance contract involving a third party.
一个客户有多条需要访问遗留系统的业务线。
A customer had several lines of businesses that required access to legacy systems.
TJ：有些人宣称SOA已死，所以我当然不愿意把ESB放在这个列表中。：-在我看来，SOA跟仅仅用esb集成遗留系统和提供服务相比是一个相当大的课题。
TJ: SOA is declared dead by some, so I certainly don't want to put an ESB in that list: - I think SOA is a far bigger topic than just integration legacy systems and providing services via an ESB.
遗留集成的一个目标：为了支持这一目标而去构建服务，并非出于实现特定的业务需求而将系统链接起来。
One goal of legacy integration: building Services to support this goal, NOT connecting systems to address a particular business need.
WDzV6.0.1提供了内置的CICSTS测试环境，可与 CICSTransactionGatewayV6.0.2 组合使用，从而提供一个非常强大的用于从遗留系统公开服务的环境。
WDz V6.0.1 provides a built-in CICS TS test environment that, along with the CICS Transaction Gateway V6.0.2, provides a very powerful environment for exposing services from legacy systems.
然而，通过与冗余的后端功能相集成，封闭的遗留系统(自定义应用程序和打包的应用程序)仍是一个挑战。
However, integrating with redundant back-end functionality, locked-in legacy systems (custom and packaged applications) remains a challenge.
Kerberos用户信息存储在一个数据库中（在遗留的配置中常常是文件系统中的文件）。
The Kerberos user information is stored in a database (usually a flat file on local filesystem in case of legacy configuration).
如果遗留系统是一个好的系统，您的大多数测试还是很有希望通过的。
Hopefully, if the legacy system is a good one, most of your tests will pass.
例如，设想一个合并项目，其中几个遗留系统被迁移到一个环境中。
For example, imagine a consolidation project where several legacy systems are being migrated to a single environment.
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。
The single-threaded nature of legacy application, like that just mentioned, is an example of a technical limitation of a legacy system.
这场危机的糟糕遗留物可能是一个超大型的贪婪吞食纳税人账单的银行系统。
The woeful legacy of the crisis could be a supersized banking system gorging on the taxpayers' TAB.
遗留系统限制的另一个例子是仅在固定时间运行的计划批处理。
Another example of legacy system limitations is the case of scheduled batch processes, which only run at fixed times.
CUPS比SysV打印更加灵活和用户友好，而且它提供了一个与遗留打印系统无缝集成的兼容层。
CUPS is more flexible and user friendly than SysV printing, and it offers a compatibility layer that integrates seamlessly with legacy printing.
此处的问题是，将这些后端遗留系统直接连接到Internet并不是一个很好的做法。
The problem here is that connecting those back-end and legacy systems to the Internet directly isn't good practice.
如果我们在6年前进入这个市场，我们会建立更大的遗留系统，当然，如果你有一个大的用户基础，那你要改变你的产品就更难了。
Had we been around 6 years ago we would have built more of a legacy system and, of course, once you have a large installed base it's much harder to change your product.
SUN公司发布的J2EE规范是一个获得了广泛支持的平台，便于集成各种遗留系统。
J2EE specification published by SUN corporation is a widely supported platform, which makes it efficiently to integrate legacy systems.
逆向工程是一个设计恢复、知识抽象的过程，是软件维护过程中对遗留系统分析理解的有效手段。
As a design recovery and knowledge abstracting process, reverse engineering is a efficient means to assembly legacy system in software maintenance.
在初步分析后发现，甲骨文为基础的制度，作为一个例外-遗留系统的决策表相同的数据表中的所有。
During the initial analysis it was found that the Oracle-based system had all of the same data tables as the legacy system with one exception - the decisions table.
一个迁移项目取得成功的关键因素是能否复制遗留系统的功能。
A key success factor of the migration project was the ability to replicate the functions of the legacy system.
遗留系统再工程为解决遗留系统难题提供了一个新的方向。
Legacy system reengineering is a successful way to resolve the problem of legacy system.
因此如何将旧的遗留系统再生至一个具有高可靠性、易维护性，又能方便弹性地根据企业策略而调整服务内容的可扩展性系统，是一项迫切的需求。
Consequently, how to reengineering the Legacy System to a high reliability, maintainability Scalable System that can adjust the service content conveniently and flexibly is an urgent requirement.
但是企业信息系统的设计是一个昂贵的、耗时的和劳动强度大的一项工作，企业怎样进行遗留系统的重构，已经成为了当今研究的热点。
The re - designing is a hard work, it demand much time and energy. It becomes a hot point that how to re - engineering the legacy system.
还有一个不可以避免的难题。当你不得不处理遗留的有版权的协议来保证与陈旧的系统能过正确的通信，这个难题会发生。
Another inevitable case is when you have to deal with a legacy proprietary protocol to ensure the interoperability with an old system.
还有一个不可以避免的难题。当你不得不处理遗留的有版权的协议来保证与陈旧的系统能过正确的通信，这个难题会发生。
Another inevitable case is when you have to deal with a legacy proprietary protocol to ensure the interoperability with an old system.
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