Which events a story can evolve?
- Program Increment (PI) planning
- Backlog refinement
- Iteration planning
These events trigger conversations, that could potentially reveal more information… that could potentially alter estimated size, acceptance criteria, uncover constraints, further assumptions, risks, dependencies, impediments, bottlenecks, etc.
SAFe is all about cadence and synchronization… therefore, impacted teams, suppliers and potentially the Agile Release Train (ART) must be aware of any evolutionary changes. A SAFe Scrum Master coordinates, cooperates with impacted parties and communicates these changes.