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Legacy Systems and How to Bridge the Reality Gap in Manufacturing

Written by Mevisio | Tue, Jul 15, '25

In manufacturing, legacy software imposes fundamental operational limitations. Outdated ERP and MES systems tend to create data silos, limit operational visibility, and complicate integration with other tools and IoT devices by enforcing rigid data structures. They can also create dangerous latency in quality control and equipment monitoring as a result of batch data processing, sometimes with intervals of several hours.

Combined with a reliance on spreadsheets, this ecosystem falls short of meeting the real-time, data-driven demands of modern manufacturing.

Understanding the reality gap

The data silos, lack of transparency, and integration difficulties also contribute to the “reality gap", the discrepancy between the assumptions of a legacy planning system and the realities of production.

Legacy planning systems often operate on flawed assumptions, fixed lead times, zero equipment failures, and a fully staffed, fully efficient workforce. In contrast, real production environments are complex and messy: machines break down, employees call in sick, and numerous variables cause delays and inefficiencies.

Over time, the reality gap grows as planners create unrealistic expectations without experiencing the consequences of their actions. Teams struggle to complete initiatives and often feel they’re spread too thin when their planned outcome is tied to an equation where everything works perfectly.

This undermines morale and creates tension between departments, ultimately affecting the ability to deliver high-quality results over time.  

Agility and Industry 4.0 implementation challenges

Along with creating a false sense of reality, legacy systems also hinder the agility of manufacturers and their Industry 4.0 transformation.

At the core of this problem lies poor data utilization. When legacy systems leave manufacturers with incomplete, outdated, or siloed data, it becomes challenging to act quickly or confidently. 

This is a widespread challenge:

  • 53% of manufacturers say that inadequate data utilization significantly hinders their operational efficiency and decision-making capabilities.
  • Only 29% of manufacturers worldwide effectively utilize data analytics to drive operational decision-making.

Transitioning to Industry 4.0 presents manufacturers with complex challenges, encompassing both technological and organizational aspects. The limitations of existing legacy software systems amplify these challenges:

  • Outdated architecture: Legacy systems aren’t designed to integrate with modern technologies like IoT, AI, or cloud platforms, making data exchange difficult. Rigid data structures and limited APIs hinder seamless connectivity.
  • Batch data processing: Delayed data updates lead to slow and inaccurate decision-making.
  • Reactive operations: Without real-time visibility, manufacturers can’t anticipate issues. Instead, they’re forced to react to problems that have occurred.
  • Change management friction: Legacy systems reinforce siloed thinking and make it harder to adopt the collaborative, agile ways of working that Industry 4.0 requires.
  • Transformation bottlenecks: These combined limitations prevent organizations from scaling from isolated pilots to fully integrated, data-driven operations.

To effectively transition to Industry 4.0 manufacturing, real-time data exchange and automated process coordination are essential for successful implementation.  

Achieving real-time operational visibility with Mevisio

By replacing traditional systems with modern digital management platforms that provide real-time visibility, you can prevent reality gaps and overcome organizational silos. 

One of our clients, Fläkt Woods, realized they had communication gaps across their organization, with relevant data sometimes going unused for up to 24 hours. Chris Mousley, Manufacturing Improvement Manager at Fläkt Woods, shared:

“There were endless pieces of paper being printed out from daily to weekly activities, and inevitably, there was much outdated information.” 

One key challenge was the difficulty in communicating issues quickly and efficiently from the shop floor to the management team.

To address this, Fläkt Woods implemented Mevisio’s digital board software to modernize communication and streamline issue escalation across teams and departments. As a result, they now track issues more effectively and have successfully applied lean methodologies to support continuous improvement efforts. The improved transparency has also helped the team better understand how their work contributes to the bigger picture.

There is a solution available to take over from the traditional lean gemba walk and visual planning management boards that ticks all the boxes that lean requires. For me, the future of it all is in Industry 4.0, and technology is the way forward”, Mousley said after implementing Mevisio.

Read the Fläkt Woods case: Fläkt Woods leverages Mevisio to enhance daily & lean operations