Say the Tradeoff Without Saying CAP
Translate a complex system tradeoff into a customer-relevant boundary.
A prospect asks if the dashboard is always live during failover. The buyer asks about live accuracy. Can our team treat this dashboard as live during an outage? fromTop The engineer needs to preserve the tradeoff without naming CAP theorem. fromBottom The buyer can now decide how to use each view. That gives us the operating rule. "Because of CAP theorem, we optimize availability over strict consistency for analytics aggregates." This names the theory but does not tell the buyer what to trust when. "Everything is basically live unless a region fails, which is rare." This is too soft. It…
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