These comprise the structured approaches and methodical procedures utilized during the development and upkeep of software systems.
Software Processes
Is a systematic process for planning, creating, testing, deploying, and maintaining software applications.
Software Development Life Cycle (SDLC)
Importance of SDLC (4)
- Structure and Organization
- Quality Assurance
- Risk Management
- Improved Project Planning
Key Benefits of SDLC (4)
- Improved Project Management
- Better Quality Control
- Cost and Time Efficiency
- Customer Satisfaction
Six Essential Activities of SDLC
- Requirements Analysis
- System Design (Development)
- Implementation (Coding)
- Testing
- Deployment
- Maintenance
In this phase, software engineers work with stakeholders to gather and document the functional and non-functional requirements of the software system.
Requirements Analysis
Key Activities in Requirements Analysis
- identifying user needs
- defining system features
- setting constraints
Example Deliverables in Requirements Analysis
- Requirement Specification Document (RSD)
- Feasibility Report
In this phase, the system’s architecture and design are created based on the gathered requirements.
System Design
Key Activities in System Design
- Architectural design.
- Data flow diagrams and entity-relationship diagrams.
- User interface design
- Database design
Example Deliverables in System Design
- System Architecture Document
- Database Schema
- User Interface Prototypes
During this phase, software engineers translate the system design into code.
Implementation
Key Activities in Implementation
- Writing and compiling code.
- Integrating modules.
- Code review and version control.
Example Deliverables in Implementation
- Source Code
- Module Specifications
This phase ensures that the software meets the specified requirements and works as intended.
Testing
tests individual parts of the program (such as a function or module)
unit testing
tests how different parts of the program work together.
integration testing
tests the complete system as a whole.
system testing
tests whether the system meets user or customer requirements and is ready for use.
acceptance testing
Key Activities in Testing
Creating test cases and scripts
Performing different types of testing
Identifying and fixing bugs
This phase involves releasing the software to the production environment and making it available to end users.
Deployment
This phase involves updating and improving the software after deployment to fix bugs, add new features, and adapt to changes in the environment or requirements.
Maintenance
Key Activities in Maintenance
- Bug fixes and updates.
- Performance optimization.
- Adding new features based on user feedback.
- Monitoring and support.
Example Deliverables in Maintenance
- Bug Fix Reports
- Update and Patch Releases
