Which phase of the SDLC generally follows after the design phase?

In the Software Development Life Cycle (SDLC), the phase that typically follows the design phase is the building phase. During this critical stage, developers take the design specifications created earlier and begin the actual coding and implementation of the software. This involves converting the designs into a functional application, where the system architecture, user interfaces, and interactions are developed according to the established specifications.

This phase is crucial because it translates the abstract plans and design documents into a working product. Once the building phase is completed, the subsequent testing phase can take place, where the developed software is rigorously evaluated for any defects or issues.

Focusing on the context of the undesired options, the testing phase comes after the building phase, which is why it is not the correct answer for the phase that follows design. Deployment, while important, occurs after the software has been built and tested. Lastly, the planning phase occurs at the start of the SDLC, laying the groundwork for the entire project, making it the first step rather than a follow-up to design.