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。

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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。

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Now let's look at how this difficultly plays out in a realistic legacy application scenario.

现在我们来看这个困难在真实的遗留应用程序场景中作用的情况。

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This means the core features would need to be repackaged into light application or built from scratch to be accessible by mobile devices and could lead to multiple issues such as version control, file sharing, interfacing with the legacy application apart from security.

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Just a short while ago, we faced an expensive update of our IBM Lotus Notes legacy e-mail and business application platform.

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