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To keep API behavior consistent, define one clear rule for the domain and map every affected part to follow it. This approach removes mismatched local decisions by validating behavior and proving the rule holds everywhere across the system.

Enforcing a single domain rule during migration requires mapping all affected parts, defining allowed exceptions, and validating behavior. This ensures interfaces, state, errors, and tests move toward one rule without breaking intermediate states.

You need to map domain-wide consistency when one technical rule must stay uniform across many related system parts. It is required for shared design, interfaces, migrations, reviews, tests, and security where local fixes risk creating drift or mismatched behavior.

To verify a technical rule holds true, map all affected parts, define exceptions, and validate the behavior. This process proves full coverage by reporting the rule source, the affected parts, and any exceptions that still need investigation.

Yes, you can define allowed exceptions when standardizing interfaces. Domain mapping explicitly identifies what applies uniformly, what differs, what is an allowed exception, and what still needs investigation before proving the rule holds.

Local fixes create mismatched behavior because they bypass domain-wide alignment, introducing drift and inconsistent local decisions. Establishing one clear standard across the domain removes this risk by validating that every affected part follows the same rule.