Software Development Life Cycle (SDLC)
The SDLC is the framework that governs how software is built – from the first requirement to the final deployment and beyond.
What Is Software Development Life Cycle (SDLC)?
The Software Development Life Cycle (SDLC) is the structured process by which software is planned, developed, tested, deployed, and maintained – providing a framework for consistent and high-quality delivery. It defines the stages a software project passes through, the activities performed at each stage, and the criteria for moving from one stage to the next.
The SDLC encompasses several core phases: requirements gathering, system design, implementation, testing, deployment, and maintenance. Different methodologies – Waterfall, Agile, DevOps – organise these phases differently, but all share the underlying objective of producing software that meets requirements reliably and can be maintained over time.
Modern SDLC practice is increasingly automated. CI/CD pipelines automate the build, test, and deployment phases. Automated code review tools enforce quality standards at the implementation stage. AI agents handle failure analysis and bug fixing within the CI environment. The human development effort is focused progressively on the stages that require judgment – requirements, design, architecture, and complex problem-solving – while automation handles the repeatable, rule-based work.
For teams evaluating AI tooling, the SDLC provides the framework for understanding where automation delivers the most value – and where human involvement remains essential.
