Legacy Modernization
Purpose-driven and iterative remediation over endless band-aid solutions.
What is legacy modernization and why embark on this journey?
The relevance of legacy systems stems from their long history and the fact that they support critical business functions. These systems store important data, automate processes, and support daily operations. Companies have made significant investments in the development and maintenance of these systems, and they are often indispensable for business operations.
Moreover, modernizing or migrating legacy systems can be time-consuming and costly. Enterprises face the challenge of balancing the maintenance of smooth operations with the need to adapt to modern technologies and business requirements.
Legacy systems are often the crown jewels of an enterprise. They encapsulate the essence of the business domain and have successfully supported day-to-day operations for many years.
Phillip Ghadir CEO
Benefits of legacy software modernization
Legacy modernization is like a renovation: Instead of continuing to invest in a dilapidated house, you create a solid foundation for the future. With the right measures, you transform your IT from a cost trap into a competitive advantage. We show you how to proceed step by step and the benefits you can expect.
The Path to legacy modernization
Legacy systems are often complex and have grown over years. The path to successful modernization can be rocky. We have developed a proven methodology with which we accompany you iteratively - from analysis to implementation. We start where you stand.
Software analysis
We're there when there's a crisis
Modernization strategy
Technical remediation
When nothing else works: rebuilding your software
Agentic Software Modernization
Software modernization is complex and time-consuming. Whether it's COBOL on the mainframe, sprawling Java monoliths on classic servers, or the new, distributed Big Ball of Mud in the cloud: many of these systems are hard to evolve and too often poorly understood. On top of that, the people who truly understand these systems are becoming fewer and fewer.
Agentic AI promises to fundamentally change this situation: hundreds of AI agents effortlessly work through millions of lines of legacy code, instantly detect and fix problem areas, and refine the business logic in the code down to the last subtle nuance.
Sounds too good to be true? Exactly! Because agentic AI is still no magic wand.
The Agentic Software Modernization Cycle
At INNOQ, we apply AI agents to legacy systems with a sense of proportion: structured, transparent, focused, and with humans at the critical points. To do this, we work in an iterative loop: the Agentic Software Modernization Cycle.
The 4 Phases of the Cycle
Understand
In the Modernization Assessment, we uncover what your system really contains. We work on two levels:
- With an agent-based preliminary analysis, we work through the existing code to assess the potential of AI-supported modernization while extracting initial technical concepts and core business logic.
- In parallel, our consultants examine the system beyond the code – modernization goals, architecture, and operations – through interviews with your experts.
Combining both parts produces a reliable picture of the actual modernization opportunities as well as the risks.
Decide
Using Modernization Workload Design, we evaluate the agentic options together with you:
- Where does their use provide real leverage?
- Where are deterministic tools and approaches the safer choice?
- What about hybrid approaches?
But also: where is no modernization of the existing code needed at all, because its functionality can be replaced by standard solutions, outsourced, or removed?
In the end, we deliver concrete, prioritized use cases for both agentic and conventional modernization work. These decisions are not made by AI. They remain a human responsibility.
Transform
Here we implement the prioritized steps with AI-guided modernization: goal-driven, AI-supported, but also with clear guardrails and proven methods. The spectrum ranges from
- improved code structure to
- dynamically generated documentation to
- building large-scale refactoring workflows.
Our guiding principle: "If you can tool it, tool it. If you can’t, prompt it." In practice, this means: through the consistent use of deterministic methods, we deliberately minimize the agents’ room for interpretation. This way, you get the best of both worlds: the creativity and productivity of AI agents combined with the reliability and speed of conventional modernization techniques.
Validate
Every improvement must prove its value and gain acceptance – and that's exactly what we make objectively measurable. Validation tests, progress reports, and KPI checks show whether the system and its environment are continuously improving and whether the modernization is meeting its goals. This keeps progress transparent for your team, the system's stakeholders, and your management.
The Cycle
Modernization is rarely a one-off effort – it's a continuous process. That's why the Agentic Software Modernization Cycle is designed to be iterative: the learnings from validation feed directly into the next round, while we tackle further parts of your system step by step. This keeps the transformation manageable at all times and protects you from the risk of a big-bang scenario.
You stay in full control throughout. After each phase, you decide flexibly whether and how far you want to modernize – exactly as it makes the most sense for your system and your budget. And, if you wish, with maximum data security and sovereignty through local models. Your code never leaves your premises.
Are you ready for Agentic Software Modernization?
Interested in an agent-supported modernization of your software? Then let’s talk about the realistic possibilities. As a starting point, we offer a two-day intensive workshop covering the "Understand" and "Decide" phases. It will help you and your team assess where your agentic modernization potential lies and what the right next steps are for you.
Afterwards, you decide whether to tackle your modernization yourself – or have us continue to support you with our expertise.
How we have supported our customers
With years of experience and profound expertise, we transform legacy systems into modern IT solutions and future-proof existing infrastructures. Many of our customers are already convinced of this.
What our customers say about us
INNOQ supports us as a partner not only in the technical implementation but also in the strategic digitalization of our business model.
Lukas UntereggerHead of Engineering, SACAC
One of the best, if not the best software consulting partnerships I personally ever had the privilege to experience. Thanks for the outstanding work.
Rudolf Bou-VinalsTeamlead Digital Business Platform, Phoenix Contact
Get started immediately
Our workshops and assessments pave the way for your successful legacy modernization. In compact formats, we work with you and your team to develop the goals, requirements and framework conditions for your project. We ensure that all stakeholders are on board from the beginning and empowered to actively shape the modernization. With our workshops, you get a concrete roadmap and can confidently tackle the next steps.
Frequently asked questions
What do we mean by legacy modernization?
Legacy modernization refers to the process of updating and improving aging software systems. This is necessary to ensure the adaptability of running software to operational, regulatory and market challenges.
Why is modernizing legacy systems important?
By modernizing legacy systems, companies can increase their efficiency, minimize security risks and support future growth with the help of a flexible IT architecture.
How do you determine which legacy systems should be modernized?
The decision is based on a thorough assessment of the current IT landscape, prioritizing systems with high maintenance costs, security risks, or that impede business innovation.
What solution approaches are there for legacy modernization?
When modernizing a legacy system, rehosting, refactoring, rearchitecting, rebuilding and replacing are only some of the solution ideas. We make the decision dependent on business goals, budgets, regulatory requirements and technical challenges.
How does legacy modernization impact IT security?
Modern systems integrate current security standards and technologies that reduce the risk of data leaks and attacks while improving compliance.
How long does a legacy modernization typically take and can it be implemented without interrupting operations?
The duration of a legacy modernization varies depending on the scope and complexity of the project, typically ranging from a few months to several years. Iterative approaches often allow modernization “on the fly” without crippling day-to-day business. Key factors for duration include the size of the existing system, the chosen modernization strategy, and the potential need to introduce new technologies.
