大多数应用程序需要所有这四层的功能，尽管它们可能不需要明显完整地实现这些层。
Most applications will need functionality from each of these four tiers, even though they may not implement them distinctly and completely.
本地应用程序可能不需要数据库服务器，使用简单的容易移动的数据文件就够了。
A local application might have no need of this and might benefit from using a simple and easily moved data file.
如果您独自开发一个相当小的应用程序，可能不需要名称空间。
If you are the sole developer of relatively small applications, namespaces may not be for you.
所以，您并不需要下载应用程序中可能不会使用的部分。
Therefore, you don't need to download portions of your application that might not be used.
比较新的数据源和应用程序甚至可能不需要XML适配器，因为它们可能使用 XML作为主要数据交换格式。
Newer data sources and applications might not even require XML adapters, because they might use XML as their native data exchange format.
首先，实用程序操作可能不需要对象实例来做它的工作。
First of all, a utility operation may not require an object instance to do its job.
作为迁移的一部分，应用程序代码可能不需要做重大的修改。
It is likely that significant change will not be required in your application code as part of your migration.
如果你没有孩子或者并不了解孩子，同时又是一位经验丰富的程序员，那么现在你可能不需要阅读这篇评论。
If you don't have (or know any) children, and you're an experienced programmer, then you may want to stop reading this review now.
因此，您可能不需要其他的安全性提供者为您的应用程序提供安全性了。
Therefore, you may not need another security provider for your applications.
现在，您的Web应用程序可能不需要处理这么多数据，但是任何站点的处理时间都有可能超过客户愿意等待的时间。
Now, your Web application may not be processing that much data, but any site can have processes that take longer than a customer is willing to wait.
根据应用程序的架构，可能触发其他事件，并且可能不需要获取Onselect事件。
Depending on your application architecture, other events might be triggered, and you might not necessarily get the Onselect event.
每个工具都提供了它自己的一套预构建实用程序函数。这样，你可能需要也可能不需要更多额外的函数了。
Each of the tools provides its own set of pre-built utility functions. You might or might not need many additional functions.
我们同样使用脚注来定义基本术语，有经验的程序员可能不需要这些定义。
We also use footnotes for definitions of elementary terms that an experienced programmer is unlikely to need.
如果您的程序码所属的应用程序不会被其他程序码呼叫，安全性的维护便十分简单，而且可能不需要特殊的程序码撰写。
If your code is part of an application that will not be called by other code, security is simple and special coding might not be required.
如果您的程序码所属的应用程序不会被其他程序码呼叫，安全性的维护便十分简单，而且可能不需要特殊的程序码撰写。
If your code is part of an application that will not be called by other code, security is simple and special coding might not be required.
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