Architecture & LLD

Object Relationships

Architecture & LLD Preview

Object Relationships

Association, Aggregation, and Composition: Understanding the strength of object connections.

Relationships range from simple awareness (Association) to temporary grouping (Aggregation) to permanent ownership (Composition).

Core Design Challenge

"How do objects stay connected while maintaining their independence?"

What You'll Learn:

  • Encapsulation: hiding internal data and exposing interface methods
  • Abstraction: simplifying complex operations behind clean facades
  • Inheritance: promoting code reusability via superclass relationships
  • Polymorphism: executing dynamic implementations via shared interfaces
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