Low Level Design & OOP
Design Network-Backed Search Suggestions
Asked by:Adobe
interfacesstate_managementobject_modelingtesting
Problem Overview & Object Oriented Requirements
Design a mobile search-suggestion component that debounces input and mediates between a local cache and a prefix-search backend.
Design Principles: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, Dependency Inversion (SOLID).
Topics & Patterns: interfaces, state_management, object_modeling, 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.