Model-driven development (MDD) is a paradigm for writing and implementing computer programs quickly, effectively and at minimum cost. The methodology is also known as model-driven software development (MDSD) and model-driven architecture (MDA).
The MDD approach to software development allows people to work together on a project even if their individual experience levels vary greatly. It allows an enterprise to maximize effective work on a project while minimizing the overhead necessary to produce working software that can be validated by end users in the shortest possible time. In MDD, the methodology is agile, constantly evolving to meet the needs of the business.