SOLUTIONS · Modernization & Migration

Retire legacy systems safely — with minimal, planned downtime.

The 2007 Access database, the one-person Excel macros, the vendor that vanished — moved to maintainable, documented software with parallel runs and a cutover built around your shutdown calendar.

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Key metrics
Bus-factor risk retired Change safety Documentation coverage Downtime at cutover
Trusted by 100+ businesses
  • MUFG Bank
  • Hitachi
  • Panasonic
  • BIPROGY
  • Rakuten Group
  • KPMG Consulting
  • Sumitomo Corporation
  • Toshiba System Technology
  • LegalOn Technologies
  • Vingroup
  • Jinjer
  • Mynet
  • APAMAN
  • Don Quijote
  • Sogo & Seibu
  • Fujitomi Securities
  • Tokyo University
  • MURC
…10 years delivering for Japanese companies, across 9+ countries

WHAT IT IS

Modernization & Migration

Retire the Excel macros, Access databases and end-of-life systems that hold production hostage — without stopping the line.

Somewhere in your plant, a business-critical system runs on one person's laptop, an expired license and a 2007 Access database. Everyone is afraid to touch it. We move it to maintainable, documented software with the discipline the line requires: like-for-like first, improvements second, parallel runs, and a cutover plan built around your shutdown calendar.

PAIN → RELIEF

What changes when this goes live

TODAY

Only one person understands the production database

WITH LEGACY

Documented, maintainable software — the knowledge belongs to the company

TODAY

Every change to the old system is a gamble

WITH LEGACY

Parallel runs prove the new system before the old one sleeps

TODAY

The vendor ended support years ago

WITH LEGACY

You own the code, the documentation and the future

WHAT YOU GET

The features, in three honest groups

AUDIT — know what you are standing on

  • Inventory of systems, scripts and dark-corner databases
  • What-breaks-if-it-dies ranking, by production impact
  • Risk and cost map per system
  • A written don’t-touch list — some things should stay

REBUILD — same function first

  • Like-for-like re-implementation before any improvements
  • Improvements only after stabilization
  • Data migration with validation reports, not hope
  • UX adapted to how operators actually work

CUTOVER — planned to the day

  • Parallel run until old and new numbers match
  • Cutover scheduled inside your shutdown windows
  • Hypercare period with our engineers on call
  • Training and documentation so your team owns it

A DAY ON THE FLOOR

What it looks like in real time

Kickoff · Audit week

The riskiest system is named out loud — and the plan starts with it, not with the easy one.

Go-live −2 weeks · Parallel run

Old and new run side by side; numbers are compared daily and disagreements are fixed, not argued.

Cutover weekend

The switch happens inside a planned shutdown window; Monday opens on the new system, tested.

HOW WE DEPLOY

Three phases, no big bang

1

Weeks 1–2 · Audit & rank

The legacy estate audited and ranked by risk — with an honest don’t-touch list included.

2

Months 1–3 · Rebuild & migrate

The riskiest system re-implemented like-for-like; data migrated with validation reports.

3

Months 3–4 · Parallel, cut, hand over

Parallel run, cutover inside a shutdown window, hypercare — then documentation and training to hand over.

THE HONEST PART

THE HONEST PART

If the old system still serves you well, we will say “don’t touch it” — and help you protect it instead. Modernization is a means, not a rite of passage.

What it moves

Bus-factor risk retired Change safety Documentation coverage Downtime at cutover

Before you ask

Can you really guarantee zero downtime?

Cutover happens inside planned shutdown windows and parallel runs mean production never depends on a hope. We plan the downtime, not suffer it.

Our old system talks to machines directly

We map those interfaces and rebuild them step by step — the machines keep running throughout.

Who owns the new code?

You do — delivered with documentation. We remain the maintainer for as long as you want us to be.

Can you improve the system while migrating?

Yes — in that order: same function first, improvements after stabilization. Improvement-first migrations are how projects die.

Start here

Book a free plant assessment.

60 minutes, at your factory or online. You receive our notes and a prioritized improvement map — free, with no obligation.

What you get

  • A senior engineer and a bilingual consultant lead the session.
  • Reply within one business day, in Japanese, Vietnamese or English.
  • Fixed-scope pilot proposal within two weeks of the visit.
60-min Diagnosis
1-day To reply
2-weeks To proposal

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