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North Ark

Legacy replacement

Replace the legacy system your business has outgrown.

We rebuild the old system around how your business works today, carry the data and business rules across, and plan the switch so operations keep running.

When the old system sets the limits

The system was built for the business you were years ago. Now it decides what you can offer, how fast you can move and which processes stay manual.

It connects to nothing new, few people know how to change it, and every workaround adds to the spreadsheets and manual steps around it.

Why it is still running

Most businesses keep a legacy system because replacing it looks too risky and too expensive. It holds years of data and business rules, and the business cannot stop while it is replaced.

So the workarounds grow, and the cost of keeping it rises every year while the cost of leaving looks fixed.

A rebuild costs less than it used to

AI-assisted development has cut the time and effort needed to build business software. Our engineers use it to analyse existing systems, write and test code faster, and move data with more checks along the way.

A replacement that once needed a large team and a long project is now within reach of businesses that have been putting it off.

How we reduce the risk

  1. We map what the current system does, including the rules and exceptions nobody has written down.
  2. We decide what to rebuild, what to move to existing products and what to retire.
  3. We plan the data migration and test it against real records before cutover.
  4. We run the old and new systems side by side where the process needs it.
  5. We switch over in stages, with a rollback plan for each step.
  6. We train your team and support them through the first weeks on the new system.

Run after the switch

We host, support and improve the new system after launch, so it stays current instead of becoming the next legacy system.

Related

Start a conversation

Tell us what the old system is holding back.

Describe the system, what depends on it and what you cannot do today. An engineer will outline how a replacement could work.

Talk to an Engineer