The Software Lifecycle encompasses all phases from initial conception to the retirement of a software product. It includes several stages that may overlap or be performed iteratively.
Key Phases:
- Concept: Identifying the need for a software solution.
- Requirements: Gathering functional and non-functional requirements.
- Design: Planning the architecture and components of the software.
- Implementation: Writing and compiling the code.
- Testing: Validating that the software meets specified requirements.
- Installation and Checkout: Deploying the software and ensuring it operates correctly in its environment.
- Operation and Maintenance: Ongoing support and updates to keep the software functional.
- Retirement: Phasing out the software when it is no longer needed or supported.
Understanding the software lifecycle helps organisations manage development effectively, ensuring quality at each stage and facilitating continuous improvement.