由于我们要处理的是系统提供的高度机密的信息，这个场景中的消息处理的关键业务问题可以分为如下几类。
Since we are dealing with highly confidential nature of information provided by the system, the key business problems related to message processing in this scenario can be categorized as follows.
缺陷管理系统通常包含多个产品和版本的缺陷信息，而且在典型场景中，并不需要分析所有缺陷。
A defect management system usually contains defects info for multiple products and releases, and in a typical scenario, it is not necessary to analyze all defects available.
看这样一个企业应用场景，有两个模块来从HR和Payroll核心系统创建并检索员工信息，如图5所示。
Consider an enterprise application that has two modules for creating and retrieving the employee information from the HR and Payroll core systems as shown in Figure 5.
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