The mirroring hypothesis
The empirical test of Conway's observation across paired software products. Products built by loosely coupled organisations were significantly more modular than functionally equivalent products built by tightly coupled ones.
Evidence grade: research Peer-reviewed or large-sample empirical work supports it.
Use it when
The evidence that the team boundary and the system boundary are one decision in fact, and more than a metaphor.
Where it stops working
It establishes the correlation, and does not say which structure to change to fix the other.
Where the standard uses it
- TJ-1Evaluating architectural decisions and their organisational consequencesTrade-offs, reversibility, and who has to coordinate because of this.
Sources
- Alan MacCormack, Carliss Baldwin and John Rusnak. Exploring the Duality between Product and Organizational Architectures: The Mirroring Hypothesis. Research Policy, 41(8), 1309–1324, 2012. In the bibliography
Used alongside it
- Architecture review forums practice
- Conway's law practice
- One-way and two-way doors practice
- The strangler pattern practice
Cite this model
Chicago, BibTeX and licence →Engineering Management Academy. (2026). The mirroring hypothesis. In Engineering Management Academy Body of Knowledge (Version 3.1, TEC.mirroring-hypothesis). https://www.engineeringmanagement.academy/body-of-knowledge/techniques/mirroring-hypothesis