During which stage do developers primarily write code for the software?

During the development stage, developers primarily focus on writing code to build the software application. This stage is crucial because it translates the design specifications into actual functional code. Developers use various programming languages and tools to implement the features and functionalities outlined in the design phase.

The development stage follows the planning and design phases, where the groundwork is laid. In planning, project requirements and objectives are established, and in the design phase, the structure and user interface of the software are planned. After development, there is typically a testing phase where the code is tested for bugs and issues. Thus, the development stage is characterized specifically by the active coding process, which is vital for bringing the software to life.