紧密耦合与松散耦合的对比。
集成层与系统或应用程序的其余部分松散耦合或紧密耦合的程度如何？
How tightly or loosely coupled is the integration layer from the rest of the system or application?
松散耦合应用程序中的组件依赖于各种接口和抽象类，而紧密耦合的系统则与之相反，其组件依赖于各种具体的类。
Its components rely on interfaces and abstract classes as opposed to concrete ones, as they would in a tightly coupled system.
松散耦合应用程序中的组件依赖于各种接口和抽象类，而紧密耦合的系统则与之相反，其组件依赖于各种具体的类。
Its components rely on interfaces and abstract classes as opposed to concrete ones, as they would in a tightly coupled system.
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