What is the best forum for solving integration problems among multiple scrum teams?

The most effective forum for addressing integration problems among multiple Scrum teams is the Scrum-of-scrums meetings. These gatherings facilitate collaboration and communication across different teams, allowing representatives, often known as "ambassadors" from each team, to discuss progress, obstacles, and interdependencies that may affect their work and the overall project.

During these meetings, teams can identify areas where they overlap, share insights into their specific challenges, and synchronize their efforts, helping to avoid misalignment and ensuring a smoother integration process. The format encourages teams to remain focused on common goals while addressing specific integration issues that arise in a multi-team environment.

While team retrospectives focus on improving a single team’s processes and the daily stand-up sessions are primarily concerned with daily progress and immediate roadblocks within one team, they do not provide the broader inter-team perspective necessary for integration challenges. Product backlog refinement sessions tend to emphasize preparing and prioritizing the work at the team level, rather than addressing cross-team integration. Hence, the Scrum-of-scrums meeting is the most suitable mechanism for facilitating the resolution of issues related to integration among multiple Scrum teams.