In Team Topologies (2019), DevOps experts Matthew Skelton and Manuel Pais share the secrets of building successful software teams. Skelton and Pais present a model for organizational design and team interaction based on four team types and three interaction patterns. The model emphasizes the importance of effective software teams in delivering value sustainably, and it’s designed to help organizations choose and evolve the right team patterns for their needs. The ultimate goal is to keep software healthy and optimize value streams.