Change Coupling reveals which modules are modified together in the same commits — even when no explicit dependency exists. Cross that with ownership data and your current team structure, and you can quantify exactly where team boundaries generate coordination overhead.
Explore in live demo →Redesign team boundaries based on where the code actually couples — not where the org chart says it should. Conway's Law in reverse.
Moving to stream-aligned teams or a platform model? Coupling data tells you which modules are ready to be cleanly separated and which need untangling first.
The Ownership Drift Timeline shows when teams start drifting into each other's modules — before it becomes a coordination crisis.
Conway's Law
"Any organisation that designs a system will produce a design whose structure is a copy of the organisation's communication structure."
Change Coupling makes this measurable. Where modules are tightly coupled across team boundaries, the architecture is fighting your org structure — or your org structure is fighting the architecture. Either way, Calyntro surfaces it before it shows up as delivery slowdowns.
The live demo shows Change Coupling on the MongoDB repository — 492 coupled pairs, 167 crossing team boundaries. Get in touch to run it on yours.