Solution Design & Architecture·Task 1.2·Bloom: analyse·Difficulty 3/5·8 min read·Updated 2026-07-14

Composing Two Reference Architectures Deliberately (CCAR-P)

Design end-to-end architectures (input to processing to output to feedback loops)

SUBy Solomon UdohReviewed by Solomon UdohAI-assisted · human-reviewed
In short
Composing two reference architectures is justified when two parts of a problem fail in genuinely different ways worth managing separately. Reaching for a second pattern because the problem is still undefined is a deferred design decision, not a valid composition. Composition roughly doubles the surface area to maintain and requires a separate evaluation set per component, because a system that looks healthy in aggregate can hide a failing component.

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