Available · 2 projects · Q4 2026Independent practice · Montreal
System replacement · Quebec SMBs

Your business runs on a system nobody dares to touch anymore.

It was programmed fifteen years ago by someone who left long ago. Every bug becomes a prayer. Every new need ends up in one more Excel file, one more round of double data entry. You’re walking on eggshells — and deep down, you’re waiting for the day it gives out. We replace that system piece by piece: no big bang, without losing a single record, without stopping your operations for a single day.

The cost of doing nothing
→One computer dies, and years of data go with it.
→The one person who “understands the system” gets sick, or retires.
→Contracts turned down because the system can’t keep up with growth.
→Hours of double data entry, paid every week, without it showing up anywhere.
Sound familiar?

These aren’t inconveniences. They’re risks.

None of them is serious enough to stop everything today. That’s exactly the trap: you put it off, you work around it, you get used to it — until the day one of them turns into a crisis.

  • A bug shows up, and the whole team holds its breath hoping it will fix itself.

  • Only one person really knows how the system works. When they’re away, everything slows down.

  • You still pay the licence for software the vendor stopped maintaining years ago.

  • The “real” database is three Excel files someone updates by hand, every week.

  • You’ve already said no to a project because “the system can’t do that.”

Why so many system replacements fail

The “big bang” — replacing everything at once — is the leading cause of failure.

Eighteen months of development, a switchover on a Friday night, and on Monday morning nothing works the way it used to. It’s the scenario everyone fears, and rightly so. Our approach does the opposite: the old system stays in service, and we replace it slice by slice, starting with what hurts you most.

I.

Never a big bang

Each slice delivered is in use before we tackle the next. You see the value in weeks, not years.

II.

Your data first

Migration tested and validated against your real numbers before any switchover. Nothing gets lost along the way.

III.

Reversible at every step

Until a slice has proven itself, the old path stays available. We move forward without burning bridges.

The approach, in five steps
01

Mapping what exists

We document what your system really does — including the Excel workarounds and the rules only one person knows.

02

Prioritizing by pain

We break the replacement into slices and start with the one that costs you the most hours or risk.

03

Rebuilding the first slice

The new module is built and connected to the old system, which stays in service. Your team validates it on real work.

04

Data migration

Your history is transferred, tested and reconciled — the totals have to balance before we go any further.

05

Switchover and next slice

Once the slice has proven itself, the old piece is retired. We move on to the next one, at the pace of your operations.

In the field
A Quebec grocery store connected its old point-of-sale (POS) system to a modern price-sync engine — without replacing it, without any downtime. Read the case → No system to replace, but an Excel file that’s become unmanageable? Custom software for SMBs →
First step

Twenty minutes to scope your system replacement.

Tell me about your current system and where it gets stuck: you leave with a first breakdown into slices and an honest idea of the effort — whether we work together or not.