You can apply it to one tier in an architecture and to multiple tiers across the enterprise architecture.
你可以在架构中的一层上应用它，也可以在贯穿企业架构的多个层上来应用它。
If the goal is to tie together a complicated business process across multiple requests, then state management should reside on the business tier.
如果目标是将跨多个请求的复杂业务过程联系在一起，那么状态管理应该在业务层上进行。
N-tier architectures rely on the interoperation of multiple computer systems, each of which has its own performance considerations depending on the types of services that it provides.
n层架构依赖于多个计算机系统的相互操作，根据所提供的服务的类型，每个计算机系统具有不同的性能考虑因素。
The 3-tier architecture can increase Web application availability by implementing automatic failover among multiple Web and application servers.
通过在多个Web服务器和应用服务器之间实现自动故障转移，3层架构可以提高Web应用程序的可用性。
That means that lighthearted conversation is paramount -- not a super creative plan that involves multiple stops, top-tier restaurants and hipster underground bars.
这意味着轻松愉悦的谈话是最重要的，而不是一个富有创意的安排，比如去好几个地方、去顶级餐厅和地下酒吧等等。
Implement multiple layers of validation in each tier of your application.
在每个应用程序层中实作多个验证层。
Implement multiple layers of validation in each tier of your application.
在每个应用程序层中实作多个验证层。
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