The tight-coupled systems can be difficult to maintain, because changes in one system subcomponent usually require the other subcomponent to adapt immediately.
紧密耦合系统可能很难维护，因为一个系统子组件中的更改通常需要立即对其他子组件进行调整。
Most business rules implementations are either a replacement of existing legacy applications or a subcomponent of a larger system architecture.
大多数业务规则实现或者替换现有遗留应用程序，或者作为大型系统体系结构的子组件。
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