No sooner had I written about a presentation that’s been making the rounds and how it might affect our teams at Red Hat, I find this piece on DZone. Super relevant, especially since we often occasionally use the scrum-of-scrums practice.
From the slides:
Make communication across context boundaries explicit. Use integrating teams to agree how to handle the interface and integration between systems. Integrating teams should also agree on and write acceptance tests that confirm integration across boundaries. (Emphasis mine)