Key point refence for Low level Design of Software System

 

Low-Level Design Document

Project Title:

Document Version:

Date:

Prepared by: Ritesh Roushan

Table of Contents

1. Introduction
2. System Overview
3. Detailed Module/Component Design
4. Class/Component Diagrams
5. Database Schema
6. User Interface Design
7. Security Design
8. Integration Details
9. Algorithms and Data Structures
10. Error Handling
11. Logging Mechanisms
12. Testing and Quality Assurance
13. Deployment Considerations

 

1. Introduction

Provide a brief overview of the purpose and scope of the Low-Level Design document. Explain the intended audience and the objectives of the document.

2. System Overview

Reiterate the high-level system overview provided in the HLD and describe the focus of this document on detailed design aspects.

3. Detailed Module/Component Design

Provide detailed design descriptions for each module or component identified in the HLD. Include:

• Functionalities and responsibilities of each module/component.
• Inputs, outputs, and interfaces.
• Algorithms or business logic implemented within each module/component.

4. Class/Component Diagrams

Present class/component diagrams depicting the relationships between classes/components, inheritance, and dependencies. Explain the design patterns and principles used.

5. Database Schema

Detail the database schema design, including tables, fields, relationships, indexes, and constraints. Explain the rationale behind the schema design decisions.

6. User Interface Design

Describe the user interface design in detail, including wireframes, mockups, or screen layouts. Discuss user interactions, navigation flows, and usability considerations.

7. Security Design

Outline the security mechanisms and measures implemented in the system, covering authentication, authorization, encryption, and compliance with security standards.

8. Integration Details

Provide specifics on how the system integrates with external systems or services, including APIs, protocols, data formats, and error handling mechanisms.

9. Algorithms and Data Structures

Explain the algorithms and data structures used within the system, highlighting their efficiency, complexity, and implementation details.

10. Error Handling

Detail the error handling mechanisms employed within the system, including exception handling, error codes, error logging, and recovery strategies.

11. Logging Mechanisms

Describe the logging mechanisms utilized to track system behavior, debug issues, and monitor performance. Specify log levels, log formats, and log storage.

12. Testing and Quality Assurance

Discuss the testing approach, methodologies, and tools used for unit testing, integration testing, and system testing. Address quality assurance processes and standards.

13. Deployment Considerations

Explain considerations for deploying the system, including deployment architecture, deployment scripts, environment setup, and rollback procedures.