Solution Design & Architecture·Task 1.5·Bloom: evaluate·Difficulty 4/5·10 min read·Updated 2026-07-14

Decomposition Granularity: Too Coarse vs Too Fine (CCAR-P)

Apply decomposition techniques for complex problem solving

SUBy Solomon UdohReviewed by Solomon UdohAI-assisted · human-reviewed
In short
The right decomposition granularity is the level at which each unit has a single owner (Claude, system, or human) and a single failure mode. Decomposing too coarsely hides sub-tasks that belong to different buckets or need different patterns; decomposing too finely fragments work that should stay together, adding coordination overhead with no benefit. Granularity should be re-checked against the pattern-selection factors, such as error cost and observability, once a candidate pattern is chosen.

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