Autonomous product teams are key to sustainable software delivery. But what does autonomy really mean? Do we expect the team to set up CI/CD, automate infra, test/UX all the things, and, of course, run and monitor their product? And still, deliver features? Four fundamental team topologies and three interaction modes can help reduce the cognitive load on product teams. Abstract: So you’re trying to move from agile project teams to business-aligned product teams. Everyone from the CEO to middle management is on board. Yet somehow it’s not that easy, is it? You’ve just about figured out how to split infrastructure responsibilities between teams when the next great tech for cost-effective scalability is out there and it doesn’t fit in the new model. Oh, and let’s not forget that products X and Y have no automated tests since they were developed by temporary project teams. The underlying questions are: What are the product team’s responsibilities? How do they interact with other teams and when? The fundamental team topologies provide a framework for thinking about and aligning teams with an expected set of behaviors and responsibilities. In other words, we are clarifying their purpose and ways of working. We recommend four fundamental team topologies, each with a well-defined purpose and responsibilities. Along with stream-aligned teams (of which product teams are a subset), the other three topologies recommended are a platform, enabling, and complicated subsystem. This family of topologies provides the support system necessary for product teams to thrive. In this talk, we will see what each of these topologies brings to the table and how they enable organizations to quickly evolve and respond to both new technology and business requirements over time. We will also map some common team types in the industry to the fundamental topologies, highlighting how the same team can be either a pattern or an anti-pattern depending on the context around them. This talk draws on research and case studies from the book Team Topologies by Matthew Skelton and Manuel Pais (IT Revolution Press, 2019) together with first-hand consulting experience from the authors with organizations around the world. Team Topologies are the evolution of the highly praised DevOps Topologies, focusing on an evolutionary approach for organization design.