Use case — Modernisation
Modernize your warehouse without starting from scratch.
Modernization shouldn't require abandoning the existing environment or launching a full warehouse project from scratch. The existing architecture holds value: proven rules, known definitions, history. The goal is to evolve it through controlled steps, not replace it wholesale.
The situation
The existing setup isn't just debt
A ten-year-old warehouse carries technical debt: stacked scripts, outdated documentation, poorly understood dependencies. It also carries the organization's memory and the calculation rules no one wants to lose.
This is what makes modernization difficult. Rebuilding alongside without linking to the existing system produces a second warehouse to reconcile. Redoing everything at once ties up teams for months, with no visible output. The sustainable path is the third one: build a new foundation that coexists with the old, and move usage over domain by domain.
What beVault provides
A foundation that absorbs what already exists
Sources are integrated as-is into a historized Raw Vault. Nothing is transformed at load time, so nothing is lost — business rules are applied later, in the Information Marts, where they remain readable and editable.
The legacy system keeps running while the new one is being built.
Sources are consolidated domain by domain: the relevant systems are connected, historized and qualified, without touching existing pipelines. Existing reports continue to be produced by the legacy environment until their equivalents have been reviewed and accepted.
New consumption layers are published as documented Information Marts, fed from the vault and refreshed by the built-in orchestration. Every rebuilt indicator can be compared figure by figure with its original version.
See the Information MartsThe approach
A domain-by-domain modernization
- 01
Identify the domains and sources that matter
Inventory of sources, reports and their consumers. We start with a domain of real value and manageable complexity, never the hardest one.
- 02
Build a controlled foundation
The domain's sources enter the Raw Vault, historized and subjected to the declared quality rules. The existing environment isn't altered.
- 03
Reconcile new and existing outputs
Metrics are recalculated from the vault and compared against those from the old system. Discrepancies are explained and settled with the business before any cutover.
- 04
Move usage over, then move ahead
Reports point to the new marts once reconciliation is accepted, the old pipeline stays available as a fallback for the agreed time, and the team moves on to the next domain.
Frequently asked questions
What teams ask
Do we need to stop ongoing developments?
No. The foundation is built alongside the existing setup, domain by domain, which allows delivery on the old environment to continue during the transition.
Can the existing history be carried over?
When it's available and usable, yes: it's loaded into the vault as a full-fledged source. What was overwritten in the old system obviously can't be reconstructed.
What happens if the figures differ?
That's common, and it's useful: the discrepancy is traced to its cause. It often reveals an undocumented implicit rule or an old error that had gone unnoticed.
How many domains in parallel?
Usually just one to start, then several once the team masters the approach. The pace depends more on the availability of business stakeholders than on technology.
Next step