5 bouwstenen voor een succesvolle differentiatielaag
Every change in SAP feels like a project in itself. Recent research by Panorama Consulting shows that full ERP implementations in large organizations take an average of nine months, with 57 per cent of projects exceeding the original timeline. Even minor adjustments to legacy ERP systems often take additional months.
For IT departments, this means necessary innovation slows down, and the business waits longer for improvements. The result is limited agility within your ERP landscape, while solutions exist that add flexibility without interfering with the core.
In this article, we explain how to create an innovation layer on top of an ERP system, such as SAP, using low code. We cover three key elements:
- Why are changes in the core time-consuming and risky
- How a differentiation layer with Mendix enables a smarter and faster approach
- How to apply this concretely in practice
Migrations and integration where IT gets stuck
For IT teams, the biggest challenges lie in ERP migrations and data integration. A migration is often intended to replace an outdated system. Yet legacy systems almost always remain in place because they are still temporarily required for operations.
Transferring processes and connecting old and new data sources takes time and introduces risk. That is why it is essential to think beyond individual applications and focus on end-to-end processes. This only works through close collaboration with the people who use these systems every day.
The ongoing dependency on legacy systems makes the situation even more complex. These systems are costly to maintain, difficult to integrate with new technologies, and can pose security risks. Because they are often still critical to operations, full replacement is not always realistic.
The real question should not be which apps we are building, but which problem we are truly solving. By involving teams from the start and connecting IT, OT, and other departments, an approach emerges where business value leads the way. As our colleague Cecile Maan, Principal Mendix Developer, puts it:
“In manufacturing companies, departments often operate in isolation. Technology only delivers real value when those silos disappear, and processes are viewed holistically.”
Bringing structure with the Pace Layer Model
From that perspective, architecture becomes crucial. The Pace Layer Model from Gartner provides a clear framework to define the role of systems within your IT landscape.
The model distinguishes three layers:
- Systems of record are stable systems where core data and processes are stored, such as your ERP core. This layer changes slowly and prioritizes reliability.
- Systems of differentiation are systems that make your organization unique, such as industry-specific processes or customer portals. They change more rapidly and require flexibility.
- Systems of innovation are where new functionality and experimentation take place. Speed, short iterations, and direct business value are key here.
Together, these layers show that not every system needs to move at the same pace. The model helps IT teams determine where stability is essential and where flexibility creates differentiation and business value. It provides a solid foundation to approach modernisation in a controlled and focused way.
Mendix as a differentiation layer on top of SAP
As part of Siemens, the low-code platform Mendix was developed with the challenges of complex ERP environments, such as SAP, in mind. Within the Pace Layer Model, Mendix fulfils the role of a system of differentiation.
By placing Mendix on top of SAP, the core remains stable as a system of record, while IT teams gain the flexibility to respond faster to changing business needs.
In practice, we have applied this approach in manufacturing organisations, ranging from supply chain dashboards to quality monitoring solutions. The outcome is consistent: faster change without disrupting the core.
One example is Supply Risk Management. With this application, suppliers can be monitored in real time. Delays or quality issues are detected early, risks become visible, and action can be taken immediately.
The possibilities extend further. While Mendix was initially known as a platform for rapid low-code application development, it now supports Agentic AI as well. This goes far beyond simple virtual assistants. The focus is on what truly matters for IT teams: process support, signal detection, and workflow decisions powered by generative AI agents.
Mendix is evolving into a platform that not only accelerates development but also enhances decision-making and process intelligence through data.
Five building blocks for a successful differentiation layer
Using Mendix as a differentiation layer requires more than technology alone. How you approach the core, processes, and data is equally important. These five building blocks provide direction:
- Preserve core stability
Let SAP do what it does best: function as a stable and reliable system of record. Build innovation on top so the core remains untouched. - Think in processes
Do not start with building an app. Start by defining the real problem. Map processes, involve teams, and design from business value. - Apply the Pace Layer Model
Position Mendix deliberately in the system of the differentiation layer. This creates speed and agility without compromising stability or distinct processes. - Integrate data intelligently
Use connectors and integrations to expose SAP data within the differentiation layer. Information remains centrally available while becoming more accessible and actionable for the business. - Prepare for AI
View the differentiation layer not only as a development platform but also as a foundation for technologies such as Agentic AI. This adds intelligence that goes beyond workflow automation.
Start your SAP innovation journey.
Do you recognise the challenge of slow ERP changes or complex integrations? With Mendix as a differentiation layer on top of SAP, progress is often faster than expected.
Schedule a no-obligation session and explore the opportunities with our experts. Visit our contact page and discover where innovation can create immediate impact.
