Why cloud integration?

Most organizations don't run on one cloud. They run on a legacy datacenter that won't go away soon, one or two SaaS tools holding critical data, workloads on AWS/Azure/GCP — and shadow IT no one tracks. The integration is the architecture. Get it wrong and you pay in latency, cost, outages, and security holes.

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ONLINE

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The reality

Hybrid by accident

Almost no org is single-cloud. They're a mix: an on-prem ERP that won't move, two SaaS systems holding customer data, EC2 instances spun up by a previous team, and a recent push toward GCP for analytics. The integration was never designed — it accumulated.

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WARNING

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Where it bites

Real cost

Latency between systems · duplicated data with quiet drift · monthly bills nobody can attribute · outages that propagate sideways · security holes at every API seam · onboarding that takes weeks because there's no source of truth.

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STANDBY

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What to do

Design intentionally

Treat the integration as the architecture. Pick the seams deliberately. Document them. Pick where data lives, where identity lives, where the audit trail lives — before adding the next system.

// what cloud integration means

"Bringing multiple cloud environments together — either in a hybrid deployment or as multiple public clouds — so they operate as a single, cohesive IT infrastructure." — IBM, "What is cloud integration?"

In plain terms: combining different cloud-based systems into a coherent whole — and often joining them with the on-premises systems that aren't going away.

// hybrid · multi-cloud · public · private

Term	Meaning	Typical reason
Public cloud	Shared infrastructure (AWS, Azure, GCP)	Speed, scale, no capex
Private cloud	Single-tenant infra you (or a vendor) operate	Compliance, control, cost predictability
Hybrid	Mix of public + private/on-prem with integration	Migration in flight, regulated workloads
Multi-cloud	Multiple public clouds intentionally	Avoid lock-in, leverage best-of-breed services

// ask early: why is this org hybrid or multi-cloud? often the answer is "history," not strategy.

help Knowledge Check

Question 1/1

A company runs an on-prem ERP, holds customer data in Salesforce, runs analytics on GCP, and has a public-facing web app on AWS. What kind of cloud architecture is this?

// pick one to verify

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