Grokking the Low Level Design Interview Using OOD Principles/

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Summary: Designing a Restaurant Management System

Get an overview of designing the Designing a Restaurant Management system case study, covering key requirements, important classes, and design highlights.

We'll cover the following...

Key requirements
System actors
Important classes and relationships
Design highlights
Design approach
Design principles
Design patterns
Object interactions
System workflow

Now that you’ve completed the Restaurant Management system case study, let’s take a moment to reflect on and consolidate what we’ve learned. We’ll revisit the key system requirements, identify the core classes along with their responsibilities and relationships, and highlight the major design principles applied. We’ll also examine how objects interact within the system and walk through the overall workflow to understand how the components come together to achieve the desired functionality.

Key requirements

Below are the core functional and non-functional requirements for the Restaurant Management system:

The restaurant can have multiple branches, each with unique menus and table configurations.
Waiters can create and update orders for tables, adding multiple items per person.
Customers and receptionists can search for tables and make, modify, or cancel reservations.
The system can provide real-time information on available tables for walk-in customers.
The system notifies customers as their reservation time approaches.
Customers can pay bills using credit cards or cash; servers initiate payment processing.
Managers can update branch menus and table layouts.
The system automatically updates table statuses after reservations and payments. ...