尽管集群提供了任意对任意的连接，名称保持了旧的连接样式，但是将名称向上推进到了逻辑层。
Although the cluster provides any-to-any connectivity, the names preserve the old style of connectivity but push it up into the logical layer.
然而，只是简单的将二者分离开无法实现有效的功能，还需要加入一个间接层以连接并协调表现层与业务逻辑层。
However, keeping the two isolated does not serve any useful purpose. It also suggests adding a layer of indirection to join and mediate between presentation and business logic layers.
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