Compare the ADKAR, Kotter and Lewin change management models to discover which approach works best for organisational change and digital transformation. Learn how each model supports employee engagement, manages resistance to change and strengthens change management strategy in German organisations.

Among the most widely used change management models, the Lewin model explains organisational transformation through three broad phases: Unfreeze, Change and Refreeze. Developed from the work of social psychologist Kurt Lewin, it remains one of the most accessible frameworks for understanding how organisations move away from established practices and embed new ones.

1. Unfreeze

During the Unfreeze phase, leaders prepare the organisation for change. They explain why existing practices are no longer suitable, examine the risks of maintaining the current situation and identify attitudes or structures that may obstruct progress.Change Management & Organisational Transformation course

This phase is especially important when employees are comfortable with familiar routines. People are less likely to support a new process if they do not understand why it is needed or how it will affect their responsibilities. Like other change management models, Lewin therefore begins by preparing people before introducing new working methods.

2. Change

The Change phase involves introducing new systems, processes, behaviours or organisational structures. Employees may require training, clear communication, leadership support and opportunities to provide feedback.

Uncertainty is common because established methods are being replaced while new practices are still developing. Regular communication, management support and practical guidance can help maintain employee engagement.

3. Refreeze

The Refreeze phase embeds successful practices in daily operations. New methods may be incorporated into policies, job responsibilities, performance expectations and training materials.

A scholarly reappraisal of Lewin’s planned approach demonstrates the framework’s foundational importance to organisational change.

Lewin’s model is useful for policy implementation, compliance improvements, departmental restructuring and clearly defined process changes. However, it provides less operational detail than other change management models, including ADKAR and Kotter. The term “refreeze” may also appear unsuitable for continuous digital transformation. In a modern context, it should mean stabilising effective practices not preventing future improvement.

Comparing the Three Change Management Models

Each model approaches change from a different level. ADKAR concentrates on individual adoption, Kotter addresses organisational mobilisation, and Lewin describes the overall transition between the current and desired states. Comparing these change management models helps organisations identify which approach best fits the scale and complexity of their transformation.

The table demonstrates that change management models should be evaluated according to their purpose rather than treated as interchangeable frameworks. The most appropriate choice depends on the principal challenge:

• Choose the ADKAR model when employees struggle to understand, accept or apply a change.
• Choose the Kotter change model when a large transformation requires leadership alignment and organisation-wide momentum.
• Choose the Lewin change model when an organisation needs a simple structure for reaching a defined future state.
• Combine the models when strategic, operational and individual issues must be managed together.

Selecting between these change management models should begin with an assessment of the organisation, its employees, the intended outcome and the barriers that may prevent progress.

Which Model Works Best for Digital Transformation?

Digital transformation is not simply a technology project. Introducing an ERP platform, artificial intelligence system or automated workflow can affect responsibilities, decision-making, skills, customer relationships and organisational culture. Organisations therefore need change management models that address both technical implementation and the human experience of transformation.

ADKAR is particularly valuable for digital adoption. It helps managers assess whether employees understand the reason for the technology, want to use it, know how it works and can apply it confidently. Among the three change management models, ADKAR provides the most direct way to identify where individual adoption has stalled.

Kotter is better suited to guiding a broad digital transformation strategy. A leadership coalition can connect technology investment to organisational priorities, communicate a clear vision and remove barriers between departments. Short-term wins can demonstrate progress and build support for wider implementation.

Lewin can frame the overall transition. The organisation first prepares to leave outdated systems, then introduces new processes and finally embeds the accepted practices. Businesses pursuing continuous innovation should interpret the final phase flexibly.

Germany’s IHK Change Management programmes combine classical change management models with agile frameworks and situation-specific application. This reflects the reality that an agile transformation still requires leadership, communication, employee support and a clear purpose.

For a complex digital programme, an organisation could use Kotter to direct mobilisation, ADKAR to support employee adoption and Lewin to communicate the overall transition.

A Practical German Mittelstand Example

Consider a German manufacturing company with 250 employees. It plans to replace spreadsheets and disconnected software with a cloud-based ERP platform. The project affects finance, purchasing, inventory management and production planning. Applying different change management models can help the company address the strategic, operational and individual dimensions of the project.

Using Lewin, the organisation could begin by explaining why the current systems are no longer adequate. During the Change phase, it would implement the platform, redesign workflows and clarify responsibilities. Refreezing would involve updating procedures and integrating the system into regular operations.

Using Kotter, leaders could create urgency around efficiency, data quality and competitiveness. A guiding coalition could include senior managers, IT specialists and representatives from affected departments. The company could pilot the platform in one operational area, remove barriers and communicate credible early achievements before expanding the rollout.

Using ADKAR, managers could assess the needs of individual employee groups. Finance employees might understand the change but lack confidence in the new reporting functions. Production staff might have completed training but remain uncertain about how the system benefits their work. Targeted communication, coaching and practical support could address these different barriers.

This scenario shows why the models do not always need to compete. Lewin provides the broad transition logic, Kotter builds organisational momentum, and ADKAR supports individual adoption.

Can Organisations Combine the Three Models?

Yes. Combining change management models can be effective when a transformation operates at several levels. However, frameworks should not be combined mechanically or used in a way that creates unnecessary administration.

Each model should have a clear purpose:

• Lewin can describe the movement from the current state to the desired state.
• Kotter can guide leadership alignment and organisational mobilisation.
• ADKAR can identify individual barriers and support adoption.
• Agile methods can enable testing, feedback and continuous improvement.

The organisation should maintain one integrated roadmap with clear responsibilities and consistent communication. Combining models is only valuable when it improves decisions, closes practical gaps and avoids duplicated work.

Why These Skills Matter in the German Job Market

German organisations are managing digitalisation, artificial intelligence, sustainability requirements, automation and changing workforce expectations. Knowledge of change management models can help professionals connect business objectives with employee participation and practical implementation.

Relevant positions include Change Manager, Transformation Manager, Organisational Development Specialist, Digital Change Manager, HR Business Partner, Project Manager and Change Management Consultant.

Professionals in these roles may require skills in change communication, stakeholder analysis, workshop facilitation, project coordination, conflict management, workforce development and change-impact assessment.

A structured change management certification or Weiterbildung can help learners build and demonstrate relevant knowledge. However, certification should complement practical experience, communication ability and industry understanding rather than be viewed as a guarantee of employment.

Professionals and job seekers who want to develop Germany-focused capabilities can explore the Change Management & Organisational Transformation course. It covers organisational change, employee participation, digital transformation, communication and sustainable implementation.

Understanding and applying change management models enables professionals to select suitable approaches, manage resistance and support lasting organisational transformation.

Which Change Model Works Best?

No single model works best in every situation. ADKAR is strongest when individual adoption and resistance are the principal concerns. Kotter is more suitable for organisation-wide transformation requiring leadership alignment and sustained momentum. Lewin offers a clear structure for defined transitions but may require additional tools for complex or continuous change.

For many transformation programmes, a carefully designed combination provides the most practical solution. Kotter can mobilise the wider organisation, ADKAR can support affected employees, and Lewin can structure the overall transition.

Ultimately, change management models strengthen professional judgement; they do not eliminate the need for it. The best framework is the one that reflects the organisation’s objectives, respects the people affected and turns strategic intentions into sustainable working practices.