Low Level Design & OOP
Design and Implement Ride Dispatch and Trip Lifecycle
Asked by:Uber
object_modelinginterfacesstate_managementconcurrencytesting
Problem Overview & Object Oriented Requirements
Model the objects and executable core for requesting a ride, assigning one available driver, and completing or cancelling the trip safely.
Design Principles: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, Dependency Inversion (SOLID).
Topics & Patterns: object_modeling, interfaces, state_management, concurrency, testing.
Class Design Breakdown
1. Identify Core Entities
List primary objects, state enums, value objects, and domain controllers.
2. Class Relationships
Define inheritance, composition, aggregation, and interface abstractions.
3. Apply Design Patterns
Incorporate Strategy, Factory, Observer, State, or Decorator design patterns.
4. Concurrency & Extensibility
Handle thread locks, synchronization, and future extensions cleanly.