The tight-coupled systems can be difficult to maintain, because changes in one systemsubcomponent 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。
2
Most business rules implementations are either a replacement of existing legacy applications or a subcomponent of a larger system architecture.