Integration Architecture and Governance for Hybrid SAP Landscapes

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Hybrid integration architecture checklist

• Strategy: principles, style and platform guidelines, owners, quality proof; inventory as appendix.
• ISA-M: assess → design hybrid platform → blueprints → enable teams; domains × styles = areas.
• Style first: API (needs answer now), messaging (reliable document), event (fan-out), bulk (volume), UI.
• Platform: Integration Suite capabilities; advanced event mesh for scale; Edge Integration Cell for local processing.
• Catalog entry: ID, owners, systems, style, platform, data class, volume/SLA, version, tests, alerts.
• APIs: OpenAPI, proxies with policies, developer hub, versioning with deprecation dates.
• Events: event catalog, schema (e.g. AsyncAPI), topic naming, owner per custom event.
• Quality: contract, idempotency, error handling, business keys; mapping → contract → E2E → volume → security tests.
• Operate: Cloud ALM Integration and Exception Monitoring, tested alerts, reprocessing, reconciliation.
• Roadmap: retire/keep/adapt/move/rebuild; convert and stabilize first; migrate Process Orchestration in waves.