SDLC Model: Classic Waterfall Model

In a typical model, a project begins with feasibility analysis. On successfully demonstrating the feasibility of a project, the requirements analysis and project planning begins. The design starts after the requirements analysis is complete, and coding begins after the design is complete. Once the programming is completed, the code is integrated and testing is done. On successful completion of testing, the system is installed. After this, the regular operation and maintenance of the system takes place.