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The Dynamic Systems Development Method or DSDM is an agile project delivery methodology which covers the entire software development lifecycle.  It was originally created to provide more structured governance and discipline to teams using Rapid Application Development (RAD).  The DSDM is owned and managed by the Agile Business Consortium, an independent, non-profit, professional organization focused on advancing business agility.  The Agile Business Consortium publishes the DSDM Project Framework, available online.

The DSDM framework sits on the foundation of eight core principles:

• Principle 1: Focus on the business need

• Principle 2: Deliver on time

• Principle 3: Collaborate

• Principle 4: Never compromise quality

• Principle 5: Build incrementally from firm foundations

• Principle 6: Develop iteratively

• Principle 7: Communicate continuously and clearly

• Principle 8: Demonstrate control

Here's a high-level view of the DSDM Project Phases:

Craig Cockburn, CC BY-SA 3.0, via Wikimedia Commons

To accomplish its goal of helping teams to deliver better software and to mitigate project risks, the Dynamic Systems Development Method (DSDM) relies on a number of core techniques and practices including:

• Timeboxing

• Modeling

• Prioritizing using MosCoW 

• Prototyping

• Iterative Development

The DSDM Project Framework defines all the components of a software development lifecycle including: 

• Core Practices

• Roles and responsibilities

• Process

• Peoples, Teams, and Interactions

• Requirements and user Stories

• Project Planning and Control