我们在第4部分中分析过的方法定时修改对于隔离性能问题来说可能一个很有用的工具，但它的确需要一个更灵活的接口。

The method timing modification we examined in Part 4 can be a useful tool for isolating performance issues, but it really needs a more flexible interface.

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在本部分中，我们将详细分析业务案例和问题。

In this section we will analyze the business case and problem in detail.

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在第一部分中，您已经简要地分析了一些导致需要考虑SOA的问题，这些需求寄希望于新的体系结构。

In this first part, you have briefly examined some of the problems that lead to consideration of a SOA, and the requirements then placed on the new architecture.

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