LieberLieber: Your Enterprise Architect specialist

LieberLieber is the skilled Enterprise Architect (Sparx Systems) specialist with decades of experience in the development of customer-specific models. Our LemonTree and Embedded Engineer extensions make working with models faster and more efficient. We focus on three main areas of expertise:

Model-Based Systems Engineering

Modern electronic systems have to fulfill more and more requirements and therefore often become very complex. For decades, a proven means for reducing this complexity has been the use of models (architecture, mechanical engineering, etc.).

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Modeling Infrastructure

Any company’s established IT infrastructure can be adapted for efficient modeling. It is essential to make the best possible use of existing structures and available data when creating an interactive working environment for modeling teams.

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Integration with Enterprise Architect

Modern IT solutions utilize data originating from many sources. The best and most efficient way to handle this diversity is with a model-based approach. Our years of experience have provided us with the know-how required to connect such data sources to Enterprise Architect in the best possible way.
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Profit from the LieberLieber
360° CONCEPT

With us, customers get everything they need for model-based software and system development from a single source: in-depth consulting, careful assessment of requirements, creation of individual tools, integration into the existing tool chain, customized training and ongoing support.

  • Everything from a single source
  • More efficiency in your modeling team
  • Integration into your infrastructure
  • Plug & Play products
  • Top training & support
More about the LieberLieber 360° CONCEPT

Consulting

We share our knowledge with you.

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Tools

We are tool development specialists.

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Integration

We ensure smooth tool interaction.

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Training & Support

We give you advice and support.

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About us

Founded as a software development company in 1996, LieberLieber Software has become a single source of competence in model-based engineering focusing on extensions for Enterprise Architect (Sparx Systems) as well as customizations for a wide variety of industrial and application areas.
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Labs

LieberLieber is actively involved with partners and committees from industry, research and standards organizations. In this way we can be sure that you always get state-of-the-art solutions from us that you can rely on!
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CUSTOMERS WHO TRUST IN LieberLieber

NEWS

Prostep ivip Symposium 2025: Great interest in LemonTree.Connect, digital twins and SysML v2

From 13 - 14 May 2025, the Prostep ivip Symposium took place at the Berlin Congress Centre. LieberLieber shared a stand there with its sister company Sparx Systems Europe and was delighted by the great interest in LemonTree.Connect and topics such as digital twins and...
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LieberLieber: ISO 27001 certification has been confirmed

Following our ‘ISO/IEC 27001:2022’ certification last year, the result has now been confirmed for another year after a two-day audit. ISO 27001 is an information security management system that emphasises risk management in particular. It is valid for three years, but...
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LieberLieber: Sponsor of the INCOSE Healthcare Conference

LieberLieber: Sponsor of the INCOSE Healthcare Conference Model-based systems engineering (MBSE) is also attracting increasing interest in medical technology As a specialist in model-based systems engineering (MBSE), LieberLieber already counts a number of well-known...
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2nd place at the Digital Twin Hackathon

At the MATISSE General Assembly in Rome in March, over 50 members met to strengthen the MATISSE framework for the model-based development of trustworthy digital twins. The meeting opened with the first MATISSE hackathon, in which LieberLieber's team took 2nd...
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Embedded Engineer 3.5.4

LieberLieber Embedded Engineer for Enterprise Architect has been successfully used in modelling for over ten years. It is continuously updated and is now available in version 3.5.4. In addition to improved code generation, Embedded Engineer also has functions that...
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LemonTree 4.2

LemonTree now also with a licence for academic use LemonTree has been successful on the market for eight years and is being used in more and more industries. Due to the great demand from the academic sector and LieberLieber's involvement in international research...
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MBSE Summit 2025 – Ready to board

The MBSE Summit 2025 in Traunkirchen will be held for the fourth time this year on 2 and 3 June. We expect the event to sell out quickly again this year. The ‘insider tip’ of the MBSE community is deliberately kept completely free of advertising and combines keynotes...
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Digital twins for the industry

Model-based development of digital twins for the early verification and validation of industrial systems LieberLieber is part of the European research project MATISSE (Chips Joint Undertaking), on which around 30 partners will be working for three years. It follows on...
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LieberLieber: EU Project MATISSE

1st Open Door Event on March 26, 2025 Rome, Italy + Online LieberLieber is part of the European research project MATISSE - Model-based development of digital twins for the early verification and validation of industrial systems (Chips Joint Undertaking), in which...
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TdSE 2024: Freshen up with LieberLieber

Thank you for your great interest in our solutions and the interesting discussions at TdSE 2024! Perhaps you also tasted our special drink ‘Freshen up’, which we served for the first time at our stand. In the well-attended tool vendor project, we presented a unified...
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LieberLieber: Modelling for cancer proton therapy

IBA is igniting the second rocket stage for MBSE and is convinced of its great benefits IBA is the world leader in particle accelerator technology. Within IBA R&D, a small group of experts has been using Enterprise Architect for over 15 years for this purpose. Now...
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LieberLieber: Connectors link models and ALM tools

With LemonTree.Connect Polarion as exhibitor at the Polarion4u Days 2024 in Hamburg As part of the LieberLieber LemonTree family, LemonTree.Connect makes it possible to establish traceability between requirements from an Application Lifecycle Management (ALM) tool and...
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LemonTree.Connect for Enterprise Architect

LieberLieber and its ALM (Application Lifecycle Management) partners are empowering customers to establish traceability between requirements and architectural elements in Enterprise Architect.Integration Overview LemonTree.Connect is a plug & play product that...
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LieberLieber: MODELS 2024 – We love models!

Since we love models, this time we were also at MODELS 2024. MODELS, the ACM/IEEE International Conference on Model-Driven Engineering Languages and Systems, is the leading conference series for model-driven software and systems engineering and took place in Linz at...
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LieberLieber: Kick-off for Matisse

Model-based development of digital twins for the early verification and validation of industrial systems. LieberLieber is part of the European research project MATISSE (Chips Joint Undertaking), on which around 30 partners will be working for three years. It follows...
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LieberLieber: MBSE for the aerospace industry

The space industry is at the beginning of a new era in digital engineering and information management. The ESA (European Space Agency), for example, is relying entirely on Model Based Systems Engineering (MBSE). Against this backdrop, Beyond Gravity Austria recently...
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LieberLieber: Fascinating software

This year, LieberLieber invited six interns for an introduction to the basics of software development and initial contact with modelling. The young people were impressed by how quickly they were able to complete practical tasks and the freedom they had when choosing...
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Enterprise Architect Global Summit 2024

The Global Enterprise Architect Community Summit 2024 will take place online on 18 and 19 September 2024 and will feature presentations and discussions on a variety of topics related to Enterprise Architect, Prolaborate and Software as a Service. Philipp Kalenda and...
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That was the MBSE Summit 2024

The MBSE Summit 2024 in Traunkirchen, organized by LieberLieber and the JKU Linz, was fully booked for the first time with 95 participants. In conversations, we heard that new participants came "because they had heard good things about it" or because of the...
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LieberLieber: Webinar with Jama about LemonTree.Connect for Jama Connect

Our webinar "Bridging ALM and MBSE: Strategies for Seamless Integration", organised together with Jama Software, was attended by over 100 participants and generated a great response. The new LemonTree.Connect solution for Jama Connect ensures that your business and...
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New Release: LemonTree 4.1

We are pleased to present LemonTree 4.1 with interesting new features! In order to reach the Linux community, a preview version for LemonTree Desktop is now available for the first time. This means that Linux users can also perform a Diff&Merge with LemonTree...
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LieberLieber: You can rely on us

Now it's official: LieberLieber was recently certified according to ‘ISO/IEC 27001:2022’! ISO 27001 is the only international standard that guarantees information security. As part of the certification process, risks are therefore specifically identified and measures...
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LieberLieber: LemonTree is very popular in higher education

Vince Molnár is an assistant professor at the Budapest University of Technology and Economics, where he teaches MBSE with a groundbreaking paradigm shift towards automated quality gates and reviewing pull requests rather than grading submissions. Last semester he used...
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MedConf 2024: Agility for the healthcare sector

MedConf - Software and Device Development in Medical Technology will take place from 16 to 18 April 2024 in Munich Unterhaching as an in-person event. LieberLieber and its sister company SparxSystems Central Europe will once again be represented as exhibitors and...
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Daniel Siegl: “The victims of a lack of SysML v2 conformity will be the users!” – Discussion about SysML v2 on the Systems Engineering Trends blog

Daniel Siegl: "The victims of a lack of SysML v2 conformity will be the users!" - Discussion about SysML v2 on the Systems Engineering Trends blog Daniel Siegl from LieberLieber recently organised a top-class discussion on the topic of SysML v2 conformance, which has...
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SparxSystems CE and LieberLieber proudly present: The model-based healthcare system

An initiative for targeted digitalisation in the healthcare sector In the Whitepaper "Model-driven digital health", Oliver Matthias Kipf, Solution Lead at BIX (a Boehringer Ingelheim company), presents the many opportunities that a healthcare system whose development...
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The Future of Systems Engineering

Exploring MBSE trends in research and industry Best of MBSE Summit 2023 Model-Based Systems Engineering is becoming increasingly important. From design to execution, complex systems should be supported with human-comprehensible and machine-readable models. In this...
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TdSE 2023: We were there!

This year we were represented at TdSE with a stand, a tutorial and as a participant in the discussion on SysMLv2. While Konrad Wieland mainly welcomed visitors and interested parties at our stand, Daniel Siegl and Philipp Kalenda showed an end-to-end example in the...
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eXplore LieberLieber

eXplore LieberLieberDo you want to quickly find the information you are looking for on the LieberLieber homepage? Then we have the right tool for you: eXplore LieberLieber eXplore LieberLieber is a navigation tool with which you can quickly find the content relevant...
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LieberLieber: New Release – LemonTree 4.0

With version 4.0, the LemonTree family now has a completely new user interface as well as innovations for web-based reviews and continuous integration. The new user interface has been optimised for user friendliness and feedback and offers a 4K resolution for even...
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LieberLieber LIVE

LieberLieber Software is a specialist for model-based software and system development and regularly presents itself at various events. Our event calendar will help you to plan your meeting with us well in advance. So pick your preferred date and visit us right away. We are looking forward to meeting you!

Engineering Process Days 2025

09.-10.04.2025
Darmstadt

EA Global Summit 2025

29.-30.4.2025
Munich

Prostep Symposium

13.-14.5.2025
Berlin

Mesconf

22.-23.5.2025
Munich

MBSE Summit 2025

02.-03.6.2025
Traunkirchen

35th Annual INCOSE International Symposium

26.-31.7.2025
Ottawa

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Contact LieberLieber!

by phone under +43 662 90 600 2017 

Contact us today

LieberLieber Software GmbH
Gumpendorfer Straße 19
1060 Wien, Austria
+43 662 90600 2017
welcome@lieberlieber.com

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

LieberLieber Blog