Matthew Skelton

In some organizations, teams may operate on a permanent basis with many teams using collaboration, especially if the rate of innovation is very high. Other organizations may have a tendency toward mostly X-as-a-Service interactions, because they have a well-defined problem space and mostly need to execute on well-understood business problems

There might be times when there is a need to colocate people—at the same desks or simply on the same floor in the same building—to produce the kind of proximity that encourages the right amount of collaboration. At other times, teams might move to separate floors or even separate buildings in order to help enforce an API boundary

The team topologies within an organization change slowly over several months, not every day or every week. Over a few months, change should be encouraged in the team interaction modes, and a corresponding change should be expected in the software architecture