Takeover & modernisation
Your ERP is not the problem. Replacing it all at once is.
A system that has held for ten or fifteen years contains your business — often better than its documentation does. We don't throw it away: we take it over, break it down, and replace it piece by piece, without ever stopping production.
Talk about your legacy systemSound familiar?
The signs a system has hit its ceiling
- Every change costs more than the last one, and nobody can say why.
- Only one person still understands the core of the system.
- Data lives twice: in the tool, and in the spreadsheets that work around it.
- The version upgrade has been postponed for three years, because nobody dares.
Our approach
We strangle the legacy. We don't unplug it.
The big-bang rebuild is the riskiest scenario there is: you switch everything off, switch it back on, and discover what you forgot. We work differently — in steps, each one reversible.
- 01
Freeze and understand
We map what exists: real processes, data, regulatory constraints. The legacy scope is frozen — no further change is allowed to weigh it down.
- 02
Write to both
The new system writes alongside the old one, which remains the reference. Nothing has switched yet: we observe, compare, correct.
- 03
Cut over, module by module
One domain at a time moves to the new system, while the old one keeps serving the rest. Every cut-over has its rollback point, defined before we start.
- 04
Switch the legacy off
Last, never first. When nothing calls it any more, we switch it off — and keep it readable for as long as needed.
The new system will not inherit the old one's flaws
Between the two, we place a translation layer. The historical model — its cryptic codes, its repurposed fields, its implicit rules — stops there. What enters the new system is clean. That is what prevents rebuilding the same problem with newer technology.
And what stays
Not everything gets rebuilt. Everything must talk.
A production machine, an accounting system, a CRM: some systems will stay. We integrate them — two-way synchronisation, bulk file ingestion, interfaces with group tools — rather than asking you to replace everything.
The proof
We know what a failed takeover costs. We live with the code.
The ERP of a construction-industry manufacturer, designed by our CTO in 2012, is still in production fourteen years later. Its rebuild into microservices is under way today, led by the person who wrote it. Few providers can say they have lived both ends of a system.
See our CTO's track record →Contact
Let's talk about your legacy system.
Describe what is in place: we will tell you straight what is worth keeping, what must be rebuilt, and in what order.