Software Architecture · interview question
In an e-commerce application, how can the Observer Pattern help in implementing a notification system for order status changes?
Multiple choiceMediumchapter-13-curatedpremiumsoftware-architectureobserver-pattern
Answer and explanation
Correct answer
B. It allows the order service to notify multiple components, like email and SMS services, about status changes without knowing their details.
Why
The Observer Pattern allows the order service to broadcast status changes to multiple interested components (observers), such as email and SMS notifications, without needing explicit references to them, thereby maintaining loose coupling.
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