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。
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。
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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