0-3-5-understand-dps-002

name	0.3.5-understand-dps_002
description	[0.3.5] schema_isolation means each service's database exposes only the data and operations relevant to its bounded co

understand-dps_002

CALL NUMBER: deep_microservices_archit.dps_002 DEFINITION: schema_isolation means each service's database exposes only the data and operations relevant to its bounded context, hiding internal structures from other services.

Invoke this skill to understand dps_002 down to its primitives. The RELATIVE ROOT below is the least-fixed-point closure of everything it bundles from — the full import cone, grouped by the lib each prim comes from. Projected from a prover-typed KB (MAP/SWI-Prolog consistency gate): every reference below resolves.

THE RELATIVE ROOT (the import cone, by lib)

from deep_microservices_archit

• dps_005 (d1): schema_ownership declares that a service is the sole authority for defining, migrating, and evolving its database schema; no other service may modify it.
• dps_009 (d2): migration_orchestration is the process of evolving a service's schema independently, typically done via versioned migration scripts (e.g., Flyway, Liquibase) that each service applies on its own schedule.

CONSUMERS (what needs this)

dps_001, dps_004

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Projected from the software architecture patterns and styles KB (211 concepts / 192 relations) — consistency-typed by MAP; the facet list after the colon IS the cross-lib dependency web.

(leaf — this is an actual skill.)