The purpose of DSDM is to provide systems faster than is achievable in the waterfall approach without compromising on quality and development. The main control means is the time box: a short period of time (days or weeks) within the project, in which a product is delivered according to agreed quality.
Since the early 90s, there are new types of system development methodologies which is as a result of the fact that the old methods is often referred to collectively as waterfall methods, which has failed in yielding what was expected of it.
Dynamic Systems Development Method. DSDM was developed by the British DSDM Consortium.
The objective of the DSDM Consortium is making it a publicly accessible and generally accepted method, regardless of technical tools. It focuses on the information needs of a company and the solutions to be delivered, and as quickly and cheap as possible. DSDM is trying to fill that approach to building and maintaining systems that meet a tight schedule at a manageable project.
Based on a large number of projects the below advantages can be cited:
• The system is built faster;
• The users are more willing to take the system in-house;
• The risk of building an unusable system is reduced;
• The final system meets usually better to the business requirements of users;
• The users are better educated;
• The introduction of the system is usually smoother.