IT Modernization: The Missing Link to Scalable AI

Over the past few years, investments in AI initiatives have surged. Yet in conversations with IT leaders, Heads of Data, and Operations executives, a different reality is emerging: Many AI initiatives stall after early enthusiasm — not because of a lack of ideas, but because the foundation isn’t there. Legacy IT landscapes cannot keep up with the demands of modern AI, while pressure to innovate continues to rise. IT modernization is no longer optional. It is the prerequisite for turning AI into measurable business impact. The real question is: How do you move from rigid legacy systems to a scalable, AI-ready IT and data landscape?

With this article, we’re kicking off our blog series “IT modernization: Why most AI initiatives fail without a solid data and application architecture.”

Businessperson with tablet in automated production hall

Key Takeaways:

  • Cost pressure on legacy IT is rising from two directions: up to 80% of IT budgets are tied up in maintaining existing systems, while surging VMware licensing costs are forcing companies to act on IT modernization
  • Every second AI project fails after the PoC: not because of the model, but due to poor data quality and missing governance — without a solid data architecture, most AI initiatives never move beyond the prototype
  • AI readiness is an architectural, not a tooling question: organizations become AI-ready when they can deliver use cases repeatedly and at scale — once data pipelines, access models, and deployment are in place, every additional use case builds on them

Results from our modernization projects:

  • Up to 60% reduction in infrastructure costs
  • 3x higher deployment frequency
  • ML models in production in less than six months
  • Real-world example (renewable energy): replacement of a VMware-based platform resulting in 70% lower OPEX and enabling new AI use cases in weeks instead of months


Between Legacy Burden and Innovation Pressure: Why IT Modernization is Now Mission-Critical

Many IT decision-makers describe the same dilemma: Up to 80% of IT budgets are tied up in maintaining and operating existing systems (Gartner 2025). These systems have often evolved over decades — technologically outdated, fragmented, and siloed. As a result, financial resources are tied up, and skilled teams are occupied with keeping systems running instead of building new capabilities. This has direct consequences. Data-driven services are difficult to implement, scalability remains limited, and time-to-market for digital products increases.

In addition to these structural challenges, several external factors are accelerating the need for action:

  • 47% of IT applications are already running in the cloud, while VMware licensing costs have increased by up to 300% following the Broadcom acquisition
  • 80% of industrial data cannot be used for data-driven decision-making due to silos, proprietary protocols, and missing APIs
  • 62% of companies still rely on outdated business-critical applications that do not meet regulatory requirements such as NIS2 or the Cyber Resilience Act

Delaying IT modernization is therefore not a viable option. Legacy systems eventually reach a point where they can neither scale nor be maintained efficiently. At the same time, cost pressure continues to increase.

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Why do so many AI projects fail after the PoC?

Another striking observation is that 50% of all AI projects fail after the proof of concept. The root causes are rarely algorithmic, they are structural: poor data quality, fragmented data infrastructure, missing governance. Without clear ownership, transparency, and access rules, data becomes unusable for AI.

Key questions remain unanswered:

  • Who owns which data?
  • Who is responsible for data quality?
  • Who has access?

Without a unified data strategy and a modern platform that integrates data from production (OT), ERP systems (IT), and other sources, AI remains a theoretical construct. True AI readiness does not come from adopting new tools. It is built by establishing a consistent data architecture that serves as a reliable foundation for machine learning models and data-driven applications.

More importantly, AI readiness is not about getting a single use case into production. It is about building a foundation where the second, third, and tenth use case can be delivered faster, more cost-efficiently, and reliably brought into operation.

A robust IT and data foundation ultimately determines how quickly new product variants or business applications can be rolled out across sites, which operational decisions are made based on data rather than intuition, and whether manual handoffs between MES, ERP, and the shopfloor can be eliminated. All of this requires one thing: consistent IT modernization.

The Path to AI-ready: More Than a Technology Upgrade

IT modernization is often misunderstood as a purely technical exercise. In reality, it is a strategic transformation that enables new business models.

This includes modernizing applications, for example by moving from monolithic architectures to microservices, building cloud-native infrastructures, and establishing a centralized data platform that serves as a foundation for analytics and machine learning.

Across Device Insight projects, this translates into tangible outcomes:

  • Up to 60% reduction in infrastructure costs through cloud optimization
  • 3x faster deployment cycles via containerization and CI/CD automation
  • First ML models in production within less than six months

One project we are particularly proud of: a global renewable energy manufacturer replaced its VMware/Cumulocity-based platform with a cloud-native Azure solution in collaboration with Device Insight. The result: up to 70% lower OPEX, scalable processing of high-frequency data streams, and a platform that brings new AI use cases into production in weeks, not months.

For many organizations, the idea of modernizing an entire IT landscape can feel overwhelming. In practice, however, successful transformations rarely follow a big-bang approach. Instead, they start with the systems that matter most. Focusing on critical applications allows companies to create immediate value while building a scalable foundation step by step. This approach also reduces risk and makes progress measurable.

Executive Insights: Free Download

Explore how IT, operations, and data teams approach modernization in practice.
Including case studies, migration scenarios, and a proven delivery model –
based on 200+ industrial projects in our Executive Guide (PDF).

Executive Guide: IT Modernization
Read now!

Unlocking the Potential of IT Modernization

IT modernization should not be seen as an additional burden, but as a business necessity. Every AI initiative ultimately depends on the quality of the underlying IT and data architecture. Companies that postpone modernization risk rising costs, limited scalability, and failed AI initiatives. In contrast, those that invest early in modern architectures create the conditions for long-term competitiveness.

The logical starting point is a structured Modernization Assessment of the current IT landscape. Within a few weeks, this provides clarity on existing systems, identifies technical debt, and defines a realistic roadmap for modernization. From there, the transition to an AI-ready architecture becomes a manageable, step-by-step process.

Don’t wait until legacy systems slow you down. Start the conversation now.

At Device Insight, a KUKA Digital company, we understand the realities of complex industrial environments – from legacy systems that cannot simply be switched off to shopfloor integrations, OT protocols, and production logic. For nearly 25 years, we have been helping companies connect machines, unlock industrial data, and turn it into real-world impact. We are your partner for Industrial Intelligence.

Do you have questions about your modernization roadmap or want to explore a first assessment? Book a 20-minute session with us – we’ll show you where your biggest levers are and what a realistic first step looks like.

About the author:

Ingo Forstner is Senior Portfolio Manager at Device Insight, responsible for the strategic go-to-market direction. His focus: helping industrial companies evolve legacy IT landscapes into scalable foundations for AI-driven business models. Previously, he held positions at Linde Group and MAN Diesel & Turbo.

Ingo Forstner
FAQ on IT modernization
Addressing the most common questions on IT modernization, VMware exit, and the path to AI readiness.

With the new Broadcom licensing model, a move to Azure often pays off within 12–24 months — driven by a shift from CAPEX-heavy infrastructure to OPEX-based models

The integration of IT and OT data into a modern architecture (e.g., a data lakehouse) that enables fast and reliable access for ML models.

By going beyond virtualization and adopting containerization. This creates the flexibility and data availability required for AI workloads.

Outdated legacy stacks lead to innovation bottlenecks, increased security risks (e.g., NIS2), and growing skill shortages as experienced specialists retire.

A structured 3–6 week modernization assessment analyzes your IT landscape, identifies technical debt, and defines a clear roadmap.

If your legacy systems cannot provide structured machine data, critical operational decisions are made without the full picture.

Modernization creates the data foundation for predictive maintenance, enables the rollout of new product variants across sites, and eliminates manual handoffs between MES, ERP, and the shopfloor.

Because each new initiative starts from scratch: a new data pipeline, new governance discussions, a new deployment path. A modernized platform reverses this. The second use case builds on the first. AI readiness is repeatability – not a single successful pilot.

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