Journey 4 · Legacy → modern system
An ageing system nobody dares touch, and modernization quotes measured in years.
From legacy to modern system.
DevCurrent understands the old system, decides with you what to carry, redesign or drop, rebuilds it on a modern stack, and proves it still behaves the same.
Read the text in the film
- Legacy in. Modern out. Rebuilding the systems you can't afford to touch — without losing what they do.
- An aging system nobody dares touch — the enterprise's riskiest, most expensive problem.
- First we read and understand it — the legacy system itself is the source of truth.
- Every capability gets a disposition — carry it as-is, redesign it, or drop it.
- A complete, explicit map of what the modern system will and won't include.
- You confirm the map — nothing is rebuilt on an assumption.
- Then it's rebuilt on a modern stack — the full governed pipeline, layer by layer.
- Parity verification — every behaviour checked against the legacy. Nothing is lost.
- Legacy in, modern out — functionality preserved, every step reviewed and audited.
For you if you're saying
The system is written in Delphi, PowerBuilder, VB6 or COBOL, and the skills are disappearing.
We have to move to the latest .NET, Java or Angular, but the upgrade has been stuck for years.
We've been quoted a modernization that takes years, with no guarantee everything works as before.
How it runs
One platform for the whole team: product owners, architects, developers, testers and security leads work in the same journey, each at their own gate.
- The old system is read and understood: screens, business rules, data and dependencies, each cited to the code.
- You decide for each capability: carry it, redesign it or drop it.
- The system is upgraded or rebuilt on the stack you choose, always on the newest versions.
- Its behaviour is proven against the original: the new system does what the old one did.
- Every decision is recorded, and you approve before anything goes live.
What you get
A modern system on the stack you choose, proof that it behaves as the old one did, and a full record of every decision.
Faster
The modernization moves in safe, proven steps instead of one project that runs for years.
Better
Proven behaviour instead of hope.
Cheaper
You don't pay to rebuild what you don't need.
Where you decide: you make the call on every capability, and nothing goes live until you have approved the proof.
Fully autonomous or fully gated →Other journeys
Idea to certified specification A rough idea, and no one can say exactly what should be built.
The Studio interviews you, finds the gaps and contradictions, and turns the idea into a complete, certified specification, ready to plan and build. See the journey → Specification to production The specification is signed off, but building it still needs a team and months you don't have.
The full pipeline — architecture, data, backend, frontend, tests, security review and deployment — with your approval at every gate. See the journey → Existing code to audit report No one knows what is really in the code: the risks, the weak spots, the untested parts.
A full security, architecture and test-coverage audit, with the fixes and the missing tests ready to apply. See the journey →
The Studio interviews you, finds the gaps and contradictions, and turns the idea into a complete, certified specification, ready to plan and build. See the journey → Specification to production The specification is signed off, but building it still needs a team and months you don't have.
The full pipeline — architecture, data, backend, frontend, tests, security review and deployment — with your approval at every gate. See the journey → Existing code to audit report No one knows what is really in the code: the risks, the weak spots, the untested parts.
A full security, architecture and test-coverage audit, with the fixes and the missing tests ready to apply. See the journey →
Book a demo of this journey.
We reply within one working day.