Explain the design phase in the SDLC and its types

What will be an ideal response?

The third phase in the SDLC is design. During design, analysts convert the description of the recommended alternative solution into logical and then physical system specifications. The analysts must design all aspects of the system, from input and output screens to reports, databases, and computer processes. The analysts must then provide the physical specifics of the system they have designed, either as a model or as detailed documentation, to guide those who will build the new system. That part of the design process that is independent of any specific hardware or software platform is referred to as logical design. Theoretically, the system could be implemented on any hardware and systems software. The idea is to make sure that the system functions as intended. Logical design concentrates on the business aspects of the system and tends to be oriented to a high level of specificity. Once the overall high-level design of the system is worked out, the analysts begin turning logical specifications into physical ones. This process is referred to as physical design. As part of physical design, analysts design the various parts of the system to perform the physical operations necessary to facilitate data capture, processing, and information output.