Bhushan Dhumane

SDLC - Software development lifecycle models Waterfall Model. V-Shaped Model. Evolutionary Prototyping Model. Spiral Method (SDM) Iterative and Incremental Method. Agile development. Requirement analysis, Design, Implementation, Testing, Evolution. Waterfall Model - The waterfall Model is a linear sequential flow. In which progress is seen as flowing steadily downwards (like a waterfall) through the phases of software implementation. This means that any phase in the development process begins only if the previous phase is complete. The waterfall approach does not define the process to go back to the previous phase to handle changes in requirement. Used for Projects which not focus on changing the requirements. e.g. Requirement, Design, Execution, Testing, Release. V-Shaped Model - It is an extension of the waterfall model. Instead of moving down in a linear way, the process steps are bent upwards after the implementation and coding phase, to form the typical V shape. e...