How Conway’s Law and Entropy Shape Modern Tech Team Structures

Organizational Structure

This article discusses organizational structure, focusing on two laws: Conway’s Law and the law of entropy increase.

Organizational structures are dynamic, especially in the internet industry, where frequent adjustments are needed to align with evolving business goals; adjustments are meaningful only when they improve efficiency.

From one perspective, an organization’s structure is a resource allocation scheme that assigns people and tasks to teams. Clearly, if the total “cake” is fixed, allocating more to one team means less for others. Moreover, the structure influences collaboration: the more complex the structure, the harder cross‑team communication becomes.

Conway’s Law states that the architecture of a system mirrors the communication structure of the organization that designs it. In other words, the system’s design reflects the team’s organization. For example, a front‑end/back‑end separated team will produce a similarly separated system.

The mapping between organization and system is essentially a manifestation of communication outcomes. If five front‑end teams exist, it is likely that five separate component libraries or scaffolding projects will emerge, increasing communication cost exponentially with the number of teams. Organizational structure can be seen as a “de‑constructed” information‑interaction framework that reduces communication complexity, though it shifts complexity to inter‑team collaboration.

Communication patterns are expressed through system design. When inter‑team communication is hindered, efficiency drops, affecting product delivery. Teams often build internal services to reduce dependencies, aiming for high cohesion and low coupling—principles that also apply to organizational design. Consequently, team boundaries often become system boundaries.

Linear systems and linear organizational structures share a hetero‑homomorphic relationship: the system’s shape dictates the organization’s shape. When designing an organization, we usually reference the existing system architecture. In short, to achieve a desired system, you must build a corresponding team structure.

Entropy describes the disorder of a system; the entropy increase law states that, without external interference, an isolated system becomes increasingly chaotic. Applied to organizations, teams tend to become mediocre over time. As quoted from “Entropy Reduction: The Source of Huawei’s Vitality”:

“Any organization cannot escape the formula 活力 = 资源 × (空间 / 时间)^2. Organizational vitality is the sum of individual vitality. Vitality is the soul of an organization… Time is the killer of any perfect form.”

In the past year, the team felt the effects of entropy: without external stimulus and complacency, organizational vitality inevitably declines. In summary, personal ambition and team management both require continuous effort; stagnation leads to regression.