14. Explain Project Life Cycle?
Waterfall Model: The waterfall model is a software development process which follows a sequential approach. This approach steadily flows downwards like a waterfall which includes the phases of conception, initiation, analysis, design, construction, testing and maintenance. Spiral Model: The spiral model is one of the software development processes which combines the design and prototyping -in -stages together to gain the advantage of top-down and bottom-up approaches.
