We help you safely modernise the critical system that is already slowing your business down.
We don't start with a big blind rewrite. First we uncover the risks, map the system reality, and only then propose a safe next step – without chaos and without disrupting operations.
Fast risk identification
A clear next step instead of guesswork
Safer decisions for IT and management
From first findings all the way to delivery
Start Legacy Risk Check
15 questions. A first picture of your system's risk profile. A recommended next step with no commitment.
Continue with more questionsFor IT managers who feel the old system is strangling the business
Every change is slow, expensive and nerve-wracking. Nobody is sure what will break where. Modernisation can no longer be postponed, but you don't want to sign off on a project that will eat the budget and cripple operations along the way.
That's exactly why our offering is built as a safe path from risk to results.
We don't just sell development. We sell a safe next step.
We start with what the client needs most: clarity. Then we add the reality map, the modernisation plan, a pilot validation, and only then the modernisation itself.
System Risk Check
Quickly find out how risky your legacy system is and where the biggest threat lies.
System & Weak-point Map
We uncover how the system actually works, where the dependencies are, and what is slowing you down most today.
Safe Modernisation Plan
You get a clear roadmap – what to tackle now, what to leave for later, and how to modernise without chaos.
Pilot Solution Validation
We validate the approach on a smaller part of the system before you commit to a larger step.
Incremental System Modernisation
We migrate the critical system to a modern solution in stages and without unnecessary risk.
Post-launch stabilisation
We don't leave you after the release. We stabilise operations, resolve incidents quickly, and help your team navigate the transition without unnecessary stress.
Our results speak for themselves
Find out in a few minutes how risky your legacy system really is
The System Risk Check shows whether your software is just technical debt or already a problem that is making changes costly, slowing development, and increasing uncertainty.
A risk score, identification of weak spots, and a recommendation for where to start.
This isn't another theory. It's a clear next step with no commitment.
- Executive summary for management
- Follow-up one-hour consultation
- E-book: 7 most expensive mistakes in modernisation
7 Most Expensive Mistakes in Legacy System Modernisation
Find out which mistakes to avoid when modernising your legacy system. Just enter your email.
These are the most common concerns our clients have that hold back modernisation
"We're afraid modernisation will disrupt operations."
That's exactly why we don't start with a blind rewrite. First we map the reality, risks and dependencies. The goal is a controlled process, not a leap in the dark.
"Our system is too specific. Nobody from outside will understand it."
We hear this often. With legacy systems, almost everything is specific. What matters is the ability to break down, understand, and translate the system into a modern form without oversimplifying reality.
"First we need to document everything internally."
Not always. That's exactly what we often help with. We can move from an unclear and messy state to a clear plan.
"We don't have the capacity to manage this internally."
That's a common situation too. That's exactly why it makes sense to have a partner who will share the analytical and delivery responsibility.
Frequently asked questions
Modernising a legacy system doesn't have to mean a complete rewrite. And often it shouldn't. With business-critical systems it is safer to first find out their real state, dependencies and weakest points, and only then decide what to keep, what to refactor and what to replace.
At Eluvia we therefore begin every legacy system modernisation with an analysis of the current solution. Depending on the outcome, it can be followed by gradual refactoring, the replacement of individual components, a migration or a complete rewrite. The goal is to modernise the system in manageable steps and to minimise the risk of outages or problems in day-to-day operation.
Business applications written in Delphi can run reliably for many years. The problem usually appears at the moment when it gets harder and harder to find a Delphi developer, when only one person knows the system, or when the application depends on older versions of libraries, databases or other technologies.
Such a system doesn't automatically have to be rewritten. We can take over an existing Delphi application, map its state and help with its further maintenance and development. If modernisation already makes more sense, we will propose a gradual transition designed not to endanger the company's everyday operation.
Sometimes yes, but microservices are not automatically the right answer for every older monolith. A monolith to microservices migration makes sense above all when the current architecture significantly complicates further development, scaling or the independent deployment of individual parts of the system.
That is why we first assess where the real limitations of the current application lie. The result doesn't have to be splitting the whole system into dozens of services. It is often safer to gradually separate only the parts where it brings a real benefit. Modernisation should remove the problem, not merely replace an old architecture with a more fashionable one.
Yes. With legacy systems it is in fact common that the original supplier is no longer available, the development team has changed, or the documentation doesn't match the actual state of the application.
When taking a system over, we first map the source code, architecture, infrastructure, integrations and critical dependencies. Only then do we recommend how to proceed. It may be just stabilisation and taking over its maintenance, gradual application modernisation, refactoring of parts of it, or a migration to a new solution.
So you don't need to know in advance whether you need a fix, a modernisation or a complete rewrite. That is precisely one of the things the initial analysis is there to find out.
COBOL still powers a number of business-critical enterprise systems. The risk therefore usually isn't the language itself, but rather a growing dependency on a small number of people, missing documentation and the difficulty of connecting the system to new applications.
If you are missing a COBOL developer or want to reduce your company's dependency on a legacy technology, the first step should be mapping the application and its relationships. Depending on the outcome, the system can keep running safely, some of its functions can be separated out, or a gradual migration can be prepared. A complete rewrite is only one of the options – not the default solution.
Not every legacy system needs a fresh start. If the foundations of the application are healthy and only some parts of the code are the problem, legacy code refactoring can be faster, cheaper and safer than a complete rewrite.
At other times, further fixes only prolong the life of a solution that is expensive to maintain and holds back further development. We therefore decide according to the specific state of the code, the architecture, the technologies used, the tests, the documentation and the critical dependencies. The result may be refactoring, the gradual replacement of the problematic parts, or a plan for a complete modernisation.
A legacy system migration doesn't have to happen as one big switch-over from the old system to the new one. With business-critical applications it is usually safer to proceed part by part.
First we map the system, the data, the integrations and the dependencies. Then we design the target solution and the way to migrate to it. Individual parts can be moved gradually, and the old and the new solution can run side by side for some time. That reduces the risk of a single problem at launch endangering the company's entire operation.
The specific approach always depends on the system – which is exactly why we don't start a migration by rewriting code, but by understanding the current state.
PHP 5 has been without official security support for many years. An application still running on it can therefore represent both a security and an operational risk, and at the same time complicate updates of frameworks, libraries, databases or infrastructure.
A PHP 5 upgrade doesn't have to mean a complete rewrite of the application. First it is necessary to find out which code and which dependencies are preventing the move to a supported PHP version. Depending on the state of the application, a gradual upgrade, refactoring of the problematic parts or a broader modernisation of the system can then be prepared.
The important thing is not to deal only with the PHP version itself, but with everything tied to it.
An old system doesn't have to hold your business back forever. The most dangerous thing is waiting blindly.
Start with the System Risk Check. Find out what the biggest problem is today, what is truly holding you back, and where to begin safely.