[Solved] What is the main purpose of using a Room type hierarchy in system design? — Ans: To organize rooms by shared and unique features for easier maintenance | LLD

LLD - Design — Hotel Booking System

What is the main purpose of using a Room type hierarchy in system design?

ATo randomly assign room types without any structure

BTo organize rooms by shared and unique features for easier maintenance

CTo store all room data in a single flat list without categories

DTo duplicate room properties in every class separately

Step-by-Step Solution

Solution:

Step 1: Understand the concept of hierarchy
A hierarchy groups items by common traits, making management simpler.
Step 2: Apply to room types
Using a base class for shared features and subclasses for specifics avoids duplication and eases updates.
Final Answer:
To organize rooms by shared and unique features for easier maintenance -> Option B
Quick Check:
Hierarchy = Organize by features [OK]

Quick Trick: Think: shared features go in base, unique in subclasses [OK]

Common Mistakes:

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What is the main purpose of using a Room type hierarchy in system design?