For many companies, the switch to SAP S/4HANA is more than just a technical upgrade – it is a strategic realignment of their entire IT landscape. This transformation offers companies the opportunity to future-proof themselves and fundamentally improve their business processes. However, to fully exploit this potential, more is needed than just technological change – a clear strategy and structure are crucial.

Enterprise Architecture Management (EAM) is the key to success. It ensures that the technical solutions are optimally aligned with business objectives and that the transformation runs smoothly. This blog post shows how EAM helps to make S/4HANA transformation projects a success.

Why is EAM so important in the S/4HANA transformation?

EAM is more than just a tool for managing IT architecture. It is the bridge between business strategy and technological implementation. With a transformation as comprehensive as the introduction of SAP S/4HANA, companies must ensure that every technical decision supports the overarching business objectives. EAM ensures that this focus is maintained throughout.

Imagine an S/4HANA transformation without EAM: different teams work in isolation on their tasks, a common vision is missing, and important questions about the system landscape remain unanswered. These uncertainties quickly lead to delays and inefficiencies. EAM prevents this by providing a clear roadmap and ensuring that all parties are working towards the same goal.

At the same time, EAM identifies possible redundancies in the IT landscape that could hinder progress at an early stage and enables targeted planning to close gaps. The result is a leaner and more efficient IT landscape.

The role of EAM in practice: structure and overview

One of the first tasks of EAM in the context of an S/4HANA transformation is to create a clear overview of the existing systems and applications. To do this, the business-relevant applications of the company are first recorded. To connect the systems with the business value, a capability map is created that links all relevant business capabilities with the supporting IT components. This creates a transparent map that allows companies to see which systems need to be retained, replaced or adapted after an evaluation.

In this way, EAM provides the basis for a well-founded decision on the selection of the right SAP modules with the Capability Map. The Capability Map helps to ensure that the future IT landscape covers all important business requirements and that gaps are closed by targeted solutions. This structured approach avoids inefficient duplications and allows targeted measures to be taken to close critical gaps.

From analysis to implementation: the target architecture and roadmap

However, EAM does not end with the analysis of the existing landscape. The real added value comes from developing a target architecture based on this information – the vision for the future IT landscape. This architecture defines how the new S/4HANA environment is structured and what steps are necessary to achieve this goal.

This is where the roadmap comes into play. It describes the path from the current architecture to the target architecture in clear, actionable phases. Milestones are defined based on key business priorities, enabling value-adding results to be achieved at an early stage. This prioritisation helps to focus resources and ensure that both short-term and long-term business goals are met.

How EAM promotes collaboration

An often-overlooked benefit of EAM is that it improves collaboration between the various project stakeholders. The clear structure and transparent communication of the target architecture enable all teams – from IT to management to operations – to work towards the same goals. This reduces inefficiencies and ensures that all measures are implemented in a coordinated and efficient manner.

Modern tools such as LeanIX make this collaboration even easier by visually displaying the architecture. This creates transparency and promotes an understanding of the dependencies and relationships within the IT landscape among all parties involved.

Sustainable success through EAM: efficiency and security

Using EAM in the S/4HANA transformation not only brings short-term success, but also creates a sustainable basis for the company's future IT strategy. The clear structure, prioritisation of milestones and long-term target architecture ensure that the IT landscape remains flexible and adaptable to respond to future business needs.

Companies that consistently apply EAM report a significant increase in efficiency during the transformation. Risks are minimised and implementation is aligned with business objectives. The result is an IT landscape that not only meets today's requirements but is also equipped to meet future challenges.

Conclusion: EAM as an indispensable building block for every S/4HANA transformation

A successful S/4HANA transformation requires more than just the introduction of new technologies. It requires a clear vision, a structured implementation and a close connection between business requirements and technical solutions. EAM delivers exactly that.

Without EAM, transformation projects take longer, consume more resources and are unlikely to deliver the desired results. EAM helps to create a sustainable and future-oriented IT architecture that is optimally aligned with the business strategy.

The conclusion is clear: S/4HANA transformations should always be supported by EAM. The increasing complexity of modern IT landscapes and the need for flexible and agile business solutions make EAM an indispensable part of any SAP transformation.

Would you like to learn more about exciting topics from the adesso world? Then take a look at our previously published blog posts.

Find out more about EAM at adesso

Picture Christoph Rosenau

Author Christoph Rosenau

Christoph Rosenau is a consultant in the CIO Advisory Competence Centre at adesso and an IT management consultant. He specialises in the areas of enterprise architecture management, IT strategy and IT project.

Save this page. Remove this page.