Which stage includes the programming of the system in detail with necessary features?

The programming of the system in detail, including the incorporation of necessary features, is a critical component of the Development stage. During this phase, developers write the actual code based on the specifications and designs established in the earlier stages. This involves translating the system's design into a functional software application, ensuring that all desired features are implemented and that the software performs as intended.

The Development stage is where the theoretical aspects of the design become practical, as developers utilize programming languages, frameworks, and tools to build the system. It is characterized by the creation of the application's logic, database interactions, user interfaces, and any other necessary components outlined in the design.

While the Design stage involves planning and creating specifications, including architectural layout and user experience, it does not involve actual programming. The Analysis stage focuses on gathering requirements and understanding user needs, while Implementation typically refers to deploying and maintaining the completed system, rather than the detailed programming required to create it. Thus, the core activity of programming and feature integration is firmly rooted in the Development stage.