Base milestones on objective evaluation of working systems.
—Lean-Agile Principle #5
The System Demo is a significant event that provides an integrated view of new Features for the most recent Iteration delivered by all the teams in the Agile Release Train (ART). Each demo gives ART stakeholders an objective measure of progress during a Program Increment (PI).
A system demo is a critical event. It provides a way to gather immediate, ART-level feedback from the people doing the work—as well as from sponsors, stakeholders, and Customers. The one real measure of value, velocity, and progress is the demo of the fully integrated work from ...