Some solutions offer this component but it is tightly coupled with the presentation layer.
有些解决方案提供这一组件,但是它与表现层紧密地耦合在一起。
Some implementations are loosely coupled and externalized, but use a proprietary rule engine or proprietary programming framework.
有些实现被松散耦合和外部化,但使用一个自主规则引擎和自主编程框架。
Though some implementations are loosely coupled they still cannot be externalized and code level modifications are required in order to change the rule.
尽管有些实现是松散耦合的,但它们仍旧不能被外部化,要修改规则需要代码级别的修改。
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