State full form of SDLC. List various phases on SDLC.
Full Form of SDLC​
SDLC stands for Software Development Life Cycle.
Phases of SDLC​
The Software Development Life Cycle comprises several distinct phases that guide the process of developing software from initial concept to deployment and maintenance. The standard phases of SDLC are:
1. Requirement Analysis​
- Gathering and documenting user requirements
- Analyzing feasibility (technical, operational, economic)
- Creating a Software Requirement Specification (SRS) document
- Validating requirements with stakeholders
2. Planning​
- Developing project plans and schedules
- Estimating costs, resources, and timelines
- Identifying potential risks and mitigation strategies
- Establishing quality assurance approaches
3. System Design​
- Creating the software architecture
- Designing system components and interfaces
- Developing high-level design (HLD) and low-level design (LLD) documents
- Defining data models, input/output formats, and user interfaces
4. Implementation (Coding)​
- Writing code according to design specifications
- Following coding standards and best practices
- Implementing algorithms and data structures
- Performing code reviews and refactoring
5. Testing​
- Executing test cases based on requirements
- Performing various types of testing:
- Unit testing
- Integration testing
- System testing
- Acceptance testing
- Identifying and fixing defects
- Validating that the software meets requirements
6. Deployment​
- Installing the software in the production environment
- Configuring the system for operational use
- Migrating data if required
- Training end-users and administrators
- Creating documentation for users and operators
7. Maintenance and Support​
- Addressing issues discovered after deployment
- Making enhancements and improvements
- Adapting to changing requirements or environments
- Ensuring continued operation and performance
- Providing technical support to users
Some variations of the SDLC may include additional phases or combine certain phases depending on the development methodology being used. For example, in agile methodologies, these phases might be conducted iteratively in small increments rather than as distinct sequential stages.