The No. 1 model
versioning tool for distributed teams

LemonTree 4.0
LemonTree 3.3 EN

LemonTree 3.3

Simultaneously with the release of Enterprise Architect 16, LieberLieber presents LemonTree 3.3 to ensure full compatibility with the widely used modelling platform. In addition, LemonTree.Automation, a special solution for use in a tool chain, is now available.

LemonTree 3.0

The most important features at a glance

The best teams have full control over their model versions

LemonTree was developed to use versioning systems like Git for models as well. Split your models as you wish and benefit from precise version control of the individual model parts.


Compare (Diff) versions

Analyse model changes precisely and easily

Merge of model parts

Combine different model versions in a controlled manner

Breakdown into individual components

Divide the models into individual components, which remain linked

Lifecycle for model parts

Individual model components are given their own lifecycle

Choose your preferred workflow and make your team agile

Each team has its own workflows for collaboration, even across companies. Rely on proven workflows like Gitflow and take
advantage of feature branches.


Integration with the tools you already use

Enhance your workflow and integrate LemonTree seamlessly into systems such as Git, SVN, Bitbucket, GitLab etc. Profit from this
integration for your Enterprise Architect models.

Versioning systems

Benefit from the countless features of your preferred versioning system for your models.

Lifecycle Tools

Extend your modelling workflows with lifecycle tools like Bitbucket, Gitlab and many others.

Continuous Integration

Use our LemonTree Automation Editon for servers like Jenkins to also integrate the modelling automatically.


Developed for safety requirements like ISO26262

Safety requirements demand good configuration management for models as well.

Review of models

LemonTree makes it easy to review and release all changes. The changes made are marked accordingly to make them traceable at any time. With LemonTree, users can thus ensure that they meet all requirements even during critical audits.

Controlled changes to the model

LemonTree already shows in a preview how the merged versions will look like. This helps you to recognize the effects of the merging at an early stage and thus to make only really desired changes.


Certification Kit for ISO 26262

The LieberLieber ISO 26262 Certification Kit makes certification much easier for companies. For the tool
environment and the restrictions, use cases and error scenarios considered in this document, LemonTree achieves
a “tool confidence level” TCL of 1 and can be used up to ASIL D without further tool qualification steps.

Simple price structure

In order to make the decision for LemonTree as easy as possible for you, we have deliberately kept our price structure simple. We offer you annual licenses including maintenance (all LemonTree versions) and help desk support. You can choose between a single license and a floating license (for your whole team).

Single license

Floating license

Just ask us for the price list! Or contact us directly for an individual offer!


Get you and your team agile

Develop your product lines with distributed teams and involve your suppliers right away.
LemonTree allows you flexibility for the entire life cycle.


Different life cycles of model components

Since the models can be divided and individually versioned, each component (sub-model) can have its own lifecycle.


Export of model components

Model parts/components can be cleanly removed from a model and are thus also available to external developers for further processing.

Reuse of components in different projects

Individual model parts/components can be reused in different projects and further developed in parallel.

Prefabricated components

Developers at suppliers or from another internal department can quickly and easily import ready-made model packages into Enterprise Architect for further development.

Continuous Integration

LemonTree supports a platform approach to modelling, since the models can be divided into platform components on the one hand and project components on the other hand, and further developed separately.


Import with read-only permission

Model parts can be defined as “read-only” so that an internal or external supplier can use these parts but not modify them.


Versioning with Git

A partial model (or the entire model) can still be managed as EAP(x) in versioning systems such as Git.

Updating of models through intelligent model merging

If a component of the model has developed further during parallel processing, the new version can be easily imported.


Management of dependencies between model components

The integrated dependency analysis serves to define model parts more precisely before export.

Do you need help with LemonTree?

Then visit our Help page:


You want to try out LemonTree? Then ask for a test version or a web demo.

Our experts will gladly advise you.