Any organization that designs a system (defined broadly) will produce a design whose structure is a copy of the organization’s communication structure.Melvin Conway
Conway’s law was not intended as a joke or a Zen koan, but as a valid sociological observation. It is a consequence of the fact that two software modules A and B cannot interface correctly with each other unless the designer and implementer of A communicates with the designer and implementer of B. Thus the interface structure of a software system necessarily will show a congruence with the social structure of the organization that produced it.
Easily observed in organisations today Conway’s law still has merit and should be considered when designing software or reviewing organisational design.