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LLDsystem_design~12 mins

Code review checklist for LLD - Architecture Diagram

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System Overview - Code review checklist for LLD

This system provides a structured checklist to guide code reviews specifically for Low-Level Design (LLD) documents and implementations. It ensures that code adheres to design principles, is maintainable, and meets quality standards before integration.

Architecture Diagram
User
  |
  v
Code Review Tool
  |
  v
Checklist Engine
  |
  +------------------+------------------+
  |                  |                  |
Syntax Checker   Design Validator   Best Practices Checker
  |                  |                  |
  +------------------+------------------+
            |
            v
       Report Generator
            |
            v
          User
Components
User
actor
Person performing the code review using the tool
Code Review Tool
service
Interface for users to submit code and receive review feedback
Checklist Engine
service
Core logic that applies the LLD code review checklist rules
Syntax Checker
service
Validates code syntax and formatting against standards
Design Validator
service
Checks adherence to low-level design principles and patterns
Best Practices Checker
service
Ensures code follows industry best practices and maintainability guidelines
Report Generator
service
Compiles checklist results into a clear, actionable report for the user
Request Flow - 11 Hops
User → Code Review Tool
Code Review Tool → Checklist Engine
Checklist Engine → Syntax Checker
Checklist Engine → Design Validator
Checklist Engine → Best Practices Checker
Syntax Checker → Checklist Engine
Design Validator → Checklist Engine
Best Practices Checker → Checklist Engine
Checklist Engine → Report Generator
Report Generator → Code Review Tool
Code Review Tool → User
Failure Scenario
Component Fails:Checklist Engine
Impact:Code review process halts; no validation results generated; user cannot get feedback
Mitigation:Implement redundancy with fallback instances; queue requests for retry; notify user of temporary unavailability
Architecture Quiz - 3 Questions
Test your understanding
Which component checks if the code follows the correct syntax and formatting?
ADesign Validator
BSyntax Checker
CBest Practices Checker
DReport Generator
Design Principle
This architecture separates concerns by dividing the code review process into specialized components, enabling scalability and maintainability. The Checklist Engine orchestrates validation steps, ensuring modular checks for syntax, design, and best practices, while the Report Generator consolidates feedback for clear user communication.