Can you list the main stages of the software development life cycle?

The main stages of the software development life cycle (SDLC) include:

1. Requirements gathering and analysis — identifying user needs and formalizing system requirements.
2. Design — creating the architecture and design of the system, defining structure and components.
3. Development (coding) — writing source code according to the design.
4. Testing — verifying functionality, finding and fixing bugs.
5. Implementation — installing and launching the system in the operational environment.
6. Operation and maintenance — supporting, updating, and fixing the system during its use.

These stages can be iterative depending on the chosen development methodology (e.g., Agile, Waterfall).