Models help you keep track of your systems development

The benefits of models in the development of systems are clear

  • Basis for discussion – The model serves as a basis for discussion for all subject experts and developers involved
  • Documentation – The model automatically creates a consistent system documentation
  • Traceability – Changes to the model can be traced and tracked at any time
  • Abstraction Levels – Models can be executed in different levels of detail, as required
  • Functional Safety Management – Models are ideally suited to comprehensively implement functional safety requirements

LieberLieber EXPERTISE

LieberLieber has developed customer-specific models for decades and therefore possesses excellent know-how.

Systems Engineering is one of our main areas of competence. We offer:

  • Profound knowledge of development languages such as UML and SysML.
  • AUTOSAR modeling with Enterprise Architect
  • Implementation of Functional Safety Requirements in accordance with industry standards via Enterprise Architect, UML and more.
  • Code generation and traceabilty
  • Model validation ensures adherence to modeling methodology

Functional Safety Management with Enterprise Architect

Our Code Generation tool

LieberLieber is the specialist when it comes to automated generation of optimized, lean code for embedded systems with Embedded Engineer, our Plug & Play product.

  • The automatic code generation simultaneously creates detailed documentation
  • The clean integration of model-based and classic development means that existing solutions can be kept in place
  • Adherence to standards is simplified since only the code generator must be adapted
  • Requirements can be linked in the model and re-located within the generated source code
  • Modifications are easily possible since the source code is included

Embedded Engineer

News in model-based systems engineering

LieberLieber Software: HIMA Meets Tough Standards with LemonTree

The global leader in smart industrial security solutions, HIMA has used of Enterprise Architect since 2012. It was during a training course that HIMA became aware of LemonTree and recognized the great potential it holds for the versioning of EA models....

LieberLieber Software: LemonTree for Product Family Engineering

The rapidly-growing automotive supplier Preh Car Connect GmbH is re-establishing its software development on the Product Family Engineering methodology. Preh engineers, already longtime Enterprise Architect users, were recently introduced to LemonTree from...

LieberLieber Software: Next-generation doors for cats and dogs

Petwalk, the Austrian specialist for automatic dog and cat doors, is on an expansion course. In order to meet the strict safety regulations required for access to the American market, the company sought the support of LieberLieber. Together, they are now...

LieberLieber Software: LemonTree 1.3 with optimized performance

Building on healthy demand, LieberLieber LemonTree is now poised to conquer the Japanese market with the support of a key local partner. Meanwhile, the latest Release 1.3 brings even more improvements in speed and stability. LieberLieber’s product...

Fresh Model Versioning with LemonTree

After many years of supporting a number of organizations in handling their model versioning challenges, LieberLieber has now released its new model-based versioning tool as a standard solution. LemonTree is a combination of scientific and practical...

LieberLieber Software: LemonTree 1.2 optimized for Version Control Systems

Just in time for embedded world 2017: LieberLieber introduces the new version 1.2 of LemonTree, optimized for collaboration with version management systems. This update provides for improvements in performance and the diffing & merging of model versions. A...

What customers are saying

Hirschmann Car Communication

As a leading manufacturer, we want to introduce such disruptive technologies as quickly as possible, even if they change the current way of doing business. In our field, technical advancement gives us a key competitive edge that distinguishes us from our competitors. We must always be ready to enter new territory.


Thomas Adam
Head of Technology & Innovation, Hirschmann Car Communication

Hilti Power Tools

When implementing other code generators, these requirements were not fulfilled. Therefore, it soon became clear that the approach of LieberLieber was very practical and promising for us. Since during code generation activity diagrams and state machines play the greater roles, the internal learning curve can be reduced to one week. After this time, our developers can already model on their own and generate runnable code – another very positive surprise.


Dr.-Ing. Michael Fuchs
Software, electronics & drives


LieberLieber’s approach is very pragmatic: You can continue to use existing software and still switch to a model-based approach when it makes sense. This makes it much easier for us to decide on the fly whether or not to take this step. This also allow us to intensify our cooperation with LieberLieber on an ongoing basis, trying out new things over and over again.


Klaus Kindl
Founder and CEO at Petwalk Solutions

Customer Success Stories


Hirschmann Car Communication is a leading German supplier of transmitter and receiver systems. The company has long based its systems development on Enterprise Architect. Now, in a preliminary project for a remote tuner, LieberLieber Embedded Engineer is being used to generate executable source code from their UML system model.


Following exhaustive tests, the renowned construction industry supplier Hilti decided on LieberLieber’s uml2code Code Generator for Embedded Systems for Enterprise Architect.


Petwalk, the Austrian specialist for automatic dog and cat doors, is on an expansion course. In order to meet the strict safety regulations required for access to the American market, the company sought the support of LieberLieber. Together, they are now developing a model-based solution that demonstrably meets all safety regulations.

Profit from the LieberLieber

At LieberLieber, our model-based software and systems development customers receive everything from a single source: consulting, collection of requirements, creation of individual tools, integration into the existing tool chain, tailor-made training and ongoing support. LieberLieber - Models are our world!

  • Everything from a single source
  • More efficiency in your modeling team
  • Integration into your infrastructure
  • Plug & Play products
  • Top training & support


We share our knowledge with you.

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We are tool development specialists.

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We ensure smooth tool interaction.

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Training & Support

We give you advice and support.

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Contact us today!

via Telephone: +43 662 90600 2017

LieberLieber Software GmbH
Handelskai 340, Top 5
1020 Wien, Austria
+43 662 90600 2017

LieberLieber Software Corp
2800 Post Oak Blvd., Suite 4100
Houston, TX 77056
+1 832-390-2461