Service 01 — migration and integration without the copy sprawl.
Data migration & integration
A migration is not complete when the rows arrive. It is complete when the people who use them can explain where they came from, what changed, and which version is authoritative. We design that path across on-prem, hybrid, and cloud systems.
The work
We begin with the decision the data supports, then work backward to the smallest movement that preserves it. Sometimes that is a pipeline. Sometimes the honest answer is a view, federation, or an in-place read.
01
Inventory sources, consumers, definitions, owners, volume, latency, and regulatory boundaries. We identify which copy is authoritative and which copies exist only because the diagram accumulated them.
02
Choose where data genuinely needs to cross a boundary, what can stay in place, and how contracts preserve grain, keys, null semantics, history, and lineage.
03
Validate counts, balances, dimensions, freshness, and business outcomes before cutover. Reconciliation is designed into the move rather than added after a disagreement.
04
Run a controlled transition with observable checkpoints, rollback conditions, ownership, and a plan to retire temporary copies instead of letting them become permanent infrastructure.
What you leave with
Tangible, not theatrical
A written architecture showing what moves, what stays in place, where the contract lives, and why each physical copy earns its keep.
A staged cutover plan with dependencies, validation gates, rollback conditions, and an explicit retirement list for old paths.
Versioned expectations for schema, grain, keys, freshness, nulls, ownership, and acceptable change at each real boundary.
Observability, failure alerts, cost signals, ownership, and a runbook written for the person answering the alarm.
The xerocopy difference
Most migration plans optimize the new destination and treat every intermediate copy as temporary. Temporary has a habit of becoming permanent. xerocopy puts every hop on trial before it is built and gives every unavoidable copy an owner, a contract, and a deletion condition.
That discipline reduces reconciliation work, shortens the period when two systems claim to be true, and leaves the client with a smaller platform than the one pictured in the vendor deck.
The successful migration is the one that retires the old truth instead of creating another version of it.
Related work
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