What are the four phases of SDLC?

The correct answer identifies the four foundational phases of the Software Development Life Cycle (SDLC): Planning, Analysis, Design, and Implementation.

In the Planning phase, project objectives and scope are defined, which lays the groundwork for the entire project. It is essential to map out the resources required, timeline, and potential risks.

Next, the Analysis phase involves gathering and analyzing the requirements from stakeholders to ensure that the final product meets the users' needs. This sets a clear direction for the subsequent design and builds the foundation for architecture and functionality.

During the Design phase, the system's architecture and user interfaces are designed based on the established requirements. This includes creating detailed specifications and diagrams that guide the developers in how the product should operate.

Finally, in the Implementation phase, the actual coding takes place, and the system is built according to the design specifications. This phase also includes testing to ensure the software functions as intended before moving into deployment.

The other choices propose variations that either overlook key components or include phases not typically recognized as part of the standard SDLC framework. Thus, the correct answer accurately encompasses the essential stages involved in developing software effectively.