As of: 5 September 2026 · Reading time: 4 min
Key takeaways
- German industry, especially production and manufacturing, is considered a synonym for precision, quality and engineering.
- But behind the state-of-the-art façades of Industry 4.0 initiatives and smart factories,...
German industry, especially production and manufacturing, is considered a synonym for precision, quality and engineering. But behind the state-of-the-art façades of Industry 4.0 initiatives and smart factories,...
“In fifteen years we have not seen a project that could not be rescued—the question is whether the effort pays off.”
– Björn Groenewold, Managing Director, Groenewold IT Solutions
Software maintenance for production & production: How to make your digital old systems sustainable
Author: Björn Groenewold | Published: January 2026
"In fifteen years we have not seen a project that could not be rescued — the question is whether the effort pays off." — Björn Groenewold, Managing Director, Groenewold IT Solutions
The Situation in German Manufacturing
German industry, especially production and manufacturing, is considered a synonym for precision, quality and engineering.
Leaders exploring Software maintenance for production & production. How to make your… can use AI & Machine Learning, [Cost Calculator.
AI Development](/en/costs/artificial-intelligence), Discover solutions sowie Software Maintenance as structured entry points.
German industrial companies have invested heavily in modernisation. Despite this, many plants still rely on software that is 15 to 20 years old.
These systems control critical production processes.
They often lack security updates, modern interfaces, and the performance required for Industry 4.0 applications.
Software rescue is a bridge strategy. It stabilizes existing systems at once. It then enables a controlled transition to modern platforms — without halting production.
Three Risk Areas in Production IT
Risk 1: Unexpected Production Failures
Short: Legacy control systems and MES applications fail without warning.
Legacy control systems and MES applications fail without warning. A production standstill costs a midsize manufacturer between €10,000 and €100,000 per hour. These costs include:
- Lost revenue during downtime
- Wages for inactive production staff.
- Contractual delivery penalties
- Cost of emergency recovery or repair.
Proactive software rescue prevents unplanned failures. It is significantly cheaper than emergency intervention.
Risk 2: Scarce Personnel for Legacy Systems
Short: Many production systems run on programming languages that are no longer taught.
Many production systems run on programming languages that are no longer taught. The number of developers who know these languages is shrinking.
When the last specialist leaves the company, the system becomes a black box. Documentation is often incomplete or missing entirely.
Software rescue creates recorded, maintainable code. It reduces dependency on custom specialists.
Risk 3: Blocked Innovation
Short: Production companies need to connect IoT sensors, MES systems, and ERP platforms.
Production companies need to connect IoT sensors, MES systems, and ERP platforms. Legacy architectures cannot do this without expensive workarounds. Every new integration attempt adds complexity.
Over time, the system becomes impossible to change safely.
What Software Rescue Covers in Manufacturing
A rescue programme for production IT addresses three areas:
- Project recovery: Stalled or over-budget digitalisation projects are stabilized and restarted with a clear plan.
- Code modernisation: Outdated code is refactored or migrated to maintainable languages and frameworks.
- System optimisation: Performance bottlenecks are resolved and interfaces to modern systems are created.
The Result: A Stable Bridge to Industry 4.0
After a rescue programme, production companies have:
- Stable, monitored legacy systems without surprise failures.
- Recorded codebases that any developer can maintain.
- Working interfaces to MES, ERP, and IoT platforms.
- A phased migration plan with defined costs and timelines.
This enables gradual investment in Industry 4.0 — without betting everything on a single big-bang replacement project.
About the Author: Björn Groenewold (Dipl.-Inf.) is Managing Director of Groenewold IT Solutions GmbH. Since 2012, he has led over 250 software projects for German Mittelstand companies.
Frequently Asked Questions (FAQ)
What is this article about: “Software maintenance for production & production: How to make your digital old systems…”?
Here we cover Software maintenance for production & production. How to make your digital old systems… — focused on architecture, process, and business outcomes. In short.
German industry, especially production and manufacturing, is considered a synonym for precision, quality and engineering. But behind the state-of-the-art façades of Industry 4.0 initiatives and smart factories,...
Who benefits most from the content described here?
Typical readers are business and IT leaders in Software-Rettung who want to secure quality, security, and ease of upkeep over the long term.
How does this topic fit into an IT or digital strategy?
In a digital strategy, prioritize stable core processes first, then extensions. See also professional software development and consulting.
For multi-system landscapes, IT consulting and architecture helps align vendors and internal teams.
What are sensible next steps if we need support?
If you need support with design, delivery, or modernization: schedule an appointment or outline your project via contact.
References and further reading
The following separate references complement the topics in this article:
About the author
Managing Director of Groenewold IT Solutions GmbH and Hyperspace GmbH
Since 2009 Björn Groenewold has been developing software solutions for the mid-market. He is Managing Director of Groenewold IT Solutions GmbH (founded 2010) and Hyperspace GmbH. As founder of Groenewold IT Solutions he has successfully supported more than 250 projects – from legacy modernisation to AI integration.
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Software maintenance for production & production: How to make your digital old systems sustainable addresses a practical choice for manufacturers. Start with one clear goal: choose an app approach that stays secure, testable, and useful after launch.
Check the current process, the data involved, and the result users need. Then record the main risks and define a small first step. This keeps the decision easy to review and gives your team a shared basis.
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