Improve Skills

Software Development Life Cycle (SDLC)

Software development life cycle (SDLC) is a structured process used to design, develop, and test good-quality software.

Stage 1: Planning and Requirement Analysis

Understanding project needs, feasibility study, risk analysis, and initial documentation.

Stage 2: Defining Requirements

Creating Software Requirement Specification (SRS) to define project scope.

Stage 3: Designing Architecture
  • SRS - Defines system expectations
  • Design Document Specification (DDS) - Architectural layout
  • High-Level Design (HLD) - System-wide overview
  • Low-Level Design (LLD) - Module-specific details
Stage 4: Developing Product

Writing and implementing code as per design.

Stage 5: Product Testing and Integration

Testing modules, debugging, and integrating systems.

Stage 6: Deployment and Maintenance

Deploying the product and handling bug fixes, updates, and performance monitoring.

SOLID principles of Software architecture :

Single Responsibility

Each service should have a single objective.

Open-Closed Principle

Software modules should be independent and expandable.

Liskov Substitution Principle

Independent services should be able to communicate and substitute each other.

Interface Segregation Principle

Software should be divided into microservices without redundancies.

Dependency Inversion Principle

Higher-level modules should not depend on lower-level modules.

Register Login Are you an Employer?