Organisations have something paradoxical. On the one hand they focus on their inside and want to be distinguishable from the outside. On the other hand organizations thrive on the interaction with their environment and some even strive for customer intimacy.
Mirroring the forms at the border provides a long stretch of closeness and an extended space to interact. It remains a challenge to figure out how this interwoven intimacy is actually shaped, but extending the border provides ample opportunities. Organisation design in this respect is also interaction design.