Incremental mode
Introduction Incremental model is a software development methodology in which software requirements are broken down into multiple standalone modules.
Spiral model
Introduction Spiral model is a software development methodology which is the combination of iterative model and waterfall model. It is a risk driven software development model.
Extreme Programming (XP)
Introduction Extreme programming (XP) is a software development methodology that is a part of an agile methodology. It frequently responds to changing customer requirements.