DSDM model
Introduction DSDM model which stands for Dynamic System Development Model. It is an agile model that focuses on the full system development.
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.
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.