如果我们真的想卖得好，我们首先要把新产品卖给我们现有的客户。

If we want really good sales Numbers, we first need to sell this new product to our current customers.

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同样，这是我们所了解的很多客户开始时的情况：连接使用不同协议的应用程序，并使用ESB(对其进行分离)替换现有的点对点连接。

Again, this is what we see many of our customers start with: connecting applications that use different protocols, and replacing existing point-to-point connections with an ESB that decouples them.

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当我们对客户需要以及怎么最好地去实现这些需求越来越理解，现有的需求很可能会改变或者变得多余了，而新的需求也将出现。

As our understanding of customer needs and how they can best be met improves, existing requirements are likely to change or become redundant, and new requirements will emerge.

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