Loose coupling and the Observer pattern
Loose coupling is an important design principle that should be used in software applications. The main purpose of loose coupling is to strive for loosely-coupled designs between objects that interact with each other. Coupling refers to the degree of knowledge that one object has about the other object that it interacts with.
Loosely-coupled designs allow us to build flexible object-oriented systems that can handle changes because they reduce the dependency between multiple objects.
The loose coupling architecture ensures following features:
- It reduces the risk that a change made within one element might create an unanticipated impact on the other elements
- It simplifies testing, maintenance, and troubleshooting ...
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