The Software Development Life Cycle (SDLC) outlines the systematic approach to developing software, ensuring a high-quality product is delivered efficiently. Below is a step-by-step breakdown of SDLC phases, the people involved, and the tasks performed in each stage.
The initial phase involves defining the scope, goals, and feasibility of the software project. This phase lays the foundation for the rest of the development process.
Who Does This:
- Product Owner
- Project Manager
- Business Analyst
What We Produce:
- Product Requirements Document (PRD): High-level overview of the product's goals.
- Business Requirements Document (BRD): Detailed business requirements and objectives.
- Software Requirements Specification (SRS): Technical documentation of system behavior.
- Functional Requirements Document (FRD): Functionalities and features required in the software.
Who Does This:
- System Architect
- UI/UX Designer
What We Produce:
- System Design: Overall architecture of the software.
- High-Level Design Document (HLD): Overview of modules, components, and interactions.
- Low-Level Design Document (LLD): Detailed design for each component.
- Database Schema: Structure of the database.
Who Does This:
- Frontend Developer
- Backend Developer
- Fullstack Developer
What We Produce:
- Frontend Development: UI implementation.
- Backend Development: Server-side logic.
- API Integration: Connecting frontend and backend functionalities.
- Database Schema: Implementation of database structure.
Who Does This:
- Solution Architect
- QA Engineer
- Tester
What We Produce:
- Test Plan: Strategy for testing the application.
- Test Cases: Scenarios to validate software functionality.
- Test Scripts: Automation scripts for testing.
- Defects Report: List of identified bugs or issues.
Who Does This:
- Database Administrator
- DevOps Engineer
What We Produce:
- Release Notes: Summary of the deployed version.
- Installation Guides: Steps for installing the software.
- Configuration Guides: Documentation for setting up the environment.
Who Does This:
- Support Engineer
- Tester
- Developer
What We Produce:
- Change Requests: Enhancements or modifications.
- Bug Reports: Documentation of identified bugs.
- Patch Releases: Quick fixes or updates.
For smaller or personal projects, SDLC can be simplified as follows:
- Requirement Analysis: Identify the features and functionality.
- ER Diagram: Define the database structure.
- API Endpoints: Plan backend endpoints for the application.
- Create a basic visual representation of the UI/UX.
By following this structured approach, even small projects can achieve clarity and quality during development.