How to Prevent “Partially Redundant Systems”: Avoiding platform fragmentation as teams grow

Hook

As teams grow, they rebuild similar systems with slightly different assumptions. That fragmentation becomes permanent cost.

Thesis

Prevent it with clear platform boundaries, reusable primitives, and governance that isn’t bureaucracy.

How redundancy happens

Teams solve similar problems under deadline pressure, creating parallel systems.

Why it’s expensive

Inconsistent behavior, duplicate maintenance, and harder cross-team integration.

Prevention mechanisms

Boundaries, primitives, shared libraries, and lightweight review for new foundational components.

The PM role

Spot repeated patterns across roadmaps and propose a shared platform bet before fragmentation calcifies.

Actionable takeaways

• Fragmentation is the tax of growth.
• Prevent it with boundaries and primitives.
• Add lightweight review for foundations.
• PMs should spot repeat patterns early.

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