Cloud Architecture Guide
Patterns, hybrid cloud, multi-cloud strategy and ArchiMate modeling for enterprise architects
This guide covers enterprise cloud architecture from foundational patterns through hybrid cloud, multi-cloud strategy, and event-driven design — with a focus on modeling cloud architectures using ArchiMate.
Enterprise Cloud Architecture Fundamentals
Cloud architecture describes how computing resources — compute, storage, networking, and services — are organised and delivered to support enterprise workloads. Enterprise cloud architecture extends this with governance, integration patterns, security zones, and cost management at organisational scale.
Hybrid Cloud Architecture
Hybrid cloud combines private on-premises infrastructure with public cloud services, connected through dedicated or VPN networking. It allows organisations to retain sensitive workloads on-premises while leveraging cloud elasticity for variable demand and new services.
Multi-Cloud Strategy
Multi-cloud uses services from multiple public cloud providers (AWS, Azure, GCP) to avoid vendor lock-in, optimise workload placement, and meet data residency requirements. It requires a deliberate architecture strategy, cloud-agnostic integration patterns, and strong governance.
Event-Driven Architecture
Event-driven architecture (EDA) decouples producers and consumers through asynchronous event streaming. Patterns like CQRS and event sourcing enable resilient, scalable systems. EDA is foundational to cloud-native applications and microservices integration.
Microservices Architecture
Microservices decompose applications into independently deployable services, each owning its data and exposing well-defined APIs. ArchiMate models microservices as Application Components with Serving relationships, enabling impact analysis across the service landscape.
Modeling Cloud Architecture with ArchiMate
ArchiMate models cloud infrastructure in the Technology layer. Cloud platforms appear as Technology Services, containers as Technology Nodes, and networks as Communication Networks. This enables impact analysis when migrating workloads or changing cloud providers.
Cloud Architecture Articles
Frequently Asked Questions
How is ArchiMate used to model cloud architecture?
ArchiMate models cloud architecture in the Technology layer. Cloud platforms appear as Technology Services, virtual machines and containers as Technology Nodes, storage as Artefacts, and networks as Communication Networks. The Application layer shows how workloads depend on cloud infrastructure through Assignment and Serving relationships.
What is the difference between hybrid cloud and multi-cloud?
Hybrid cloud combines private on-premises infrastructure with public cloud services, typically over dedicated connectivity. Multi-cloud uses services from multiple public cloud providers simultaneously to avoid vendor lock-in and optimise workload placement by provider strength.
What cloud architecture patterns are most relevant for large enterprises?
Key patterns include: cloud-native application pattern (containers, managed services, autoscaling), hybrid integration architecture (connecting on-premises and cloud), event-driven pattern (Kafka/event streaming for decoupled services), multi-region resilience pattern, and zero-trust security pattern.
Enterprise Architecture Consulting
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