通过进一步检查exception包并注意抽象到具体类的比率，可以派生出另一个度量：抽象性。

By further examining the exception package and noting the ratio of abstract to concrete classes, you can derive another metric: abstractness.

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您知道怎么获取您想要的数据：在一定的包上下文环境中，返回包所拥有的成员(类)的度量。

You know how to get the data you need: given a package context, return the metrics for the owned members of that package that are classes.

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监视系统的代码耦合度量有助于您掌握可破坏架构的常见趋势，即设计刚度、包熵和不必要的依赖性。

Monitoring your system's code coupling metrics will help you stay on top of common trends that can undermine its architecture, namely design rigidity, package entropy, and unwanted dependencies.

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