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Hello,

I would like to propose several neutral, verifiable updates to the SimulationX article to reflect developments since the last major revision. I am professionally associated with the software and therefore am disclosing a conflict of interest and requesting that any uninvolved editor review and implement these changes if appropriate.

Summary of proposed updates:

Corporate ownership update (2025): ESI Group has been acquired and integrated into Keysight Technologies. SimulationX continues to be developed as part of the Design Engineering Software and Computer-Aided Engineering portfolio.

Recent software development (2024–2025): Addition of current information on recent major releases, including updates to battery, thermal-fluid, and energy system libraries, improvements to FEM import (beta), enhanced FMU export workflows, and user-interface improvements.

Modern workflows and standards: Expanded mention of Functional Mock-up Interface (FMI/FMU), hardware-in-the-loop (HiL), real-time simulation, and model-based systems engineering (MBSE) integration.

Expanded industry use cases: Inclusion of growing use in electrification, energy storage, hydrogen systems, and smart energy infrastructure.

Licensing model: Addition of a short neutral section describing the modular, token-based licensing scheme introduced in recent versions.

All proposed changes are based on publicly available, verifiable sources (product documentation, press releases, technical publications). I will be happy to provide independent references for each item if needed.

Also the InfoBox needs to be updated:

Developer	Keysight Technologies
Stable release	2005 / 4.5 / August 2025
Operating system	Microsoft Windows
Platform	Intel x86 32-bit, x86-64
Available in	English
Type	Simulation software
License	Proprietary commercial software
Website	SimulationX product page

Thank you for your time and consideration. MajidNas (talk) 11:58, 5 December 2025 (UTC)[reply]

SimulationX is a proprietary computer-aided engineering (CAE) software application for the physical simulation of technical systems. The software runs on Microsoft Windows and is developed by ESI ITI GmbH, formerly ITI GmbH, which is now part of Keysight Technologies following the acquisition of ESI Group in 2025.

In the mid-1980s, VEB Mikromat in Dresden (then East Germany) developed a program for MS-DOS for the design of controlled feed-axis systems and hydraulic calculations. In 1990, former Mikromat employees founded ITI GmbH. In 1993, ITI released ITI-SIM 1 for Microsoft Windows, designed for dynamic simulation of drive systems. With ITI-SIM 2 in 1995, the software was extended to include fluid simulations.

In 2002, the Modelica-based successor SimulationX was introduced as a new object-oriented simulation environment. By 2007, ITI-SIM (version 3.8) was completely replaced by SimulationX.

In 2016, ITI GmbH became part of ESI Group and was renamed ESI ITI GmbH. In 2025, ESI Group was acquired and integrated into Keysight Technologies. Since then, SimulationX continues to be developed as part of Keysight’s system design and simulation software portfolio.

SimulationX is based on a discrete network modeling approach. Technical systems are decomposed into logical sub-systems that are represented by interconnected model elements. These sub-models can be parameterized and combined to simulate the dynamic behavior of the overall system.

Models can be created using a graphical user interface or by means of Modelica-based textual modeling, enabling the development of large multidisciplinary system models.

SimulationX provides modular, domain-specific model libraries for system simulation. These include mechanics and multibody systems, power transmission, electrical engineering, fluid power (hydraulics and pneumatics), thermal-fluid systems, torsional vibration analysis, and subsea systems. In addition, Modelica-based third-party and user-defined libraries can be integrated into the software environment.

SimulationX supports the Modelica modeling language for the development and execution of custom models. Models from the Modelica Standard Library and other Modelica-compliant libraries can be directly executed within the software.

SimulationX provides interfaces for data exchange and co-simulation with other engineering tools. These include CAD systems, finite-element analysis (FEA/FEM), computational fluid dynamics (CFD), and computer-aided optimization software. The software supports co-simulation via the Functional Mock-up Interface (FMI) standard and the exchange of Functional Mock-up Units (FMUs).

SimulationX is used in hardware-in-the-loop (HiL), rapid control prototyping, and real-time simulation environments, and can be coupled with external test and simulation platforms. More recent versions support workflows related to model-based systems engineering (MBSE) and system-level digital validation.

SimulationX is used for the design, modeling, and analysis of complex mechatronic systems as well as for virtual testing in various industries, including automotive, railway, shipbuilding, heavy machinery, power generation, building technology, aerospace and defense, mechanical engineering, medical engineering, oil and gas, and consumer electronics.

In recent years, the software has also been applied increasingly in the fields of electrification, energy storage systems, electric vehicle powertrains, hydrogen systems, and smart energy infrastructure.

SimulationX is used in education and research worldwide. It is applied in academic research on topics such as electric mobility, renewable energy systems, multibody dynamics, fluid power, and control system development.

SimulationX follows a modular, token-based licensing concept that allows users to select specific functional modules and domain libraries according to their requirements. This enables flexible use across different technical disciplines and project sizes.

SimulationX is a multiphysics, Modelica-based system simulation platform that integrates mechanical, electrical, thermal, and fluid-power domains within a single environment. Its integration into Keysight Technologies in 2025 positions it within a broader ecosystem of electronic design, measurement, testing, and system validation tools.

• Dymola
• Simcenter AEMSIM
• MapleSim
• Simulink
• Modelica

MajidNas (talk) 12:02, 5 December 2025 (UTC)[reply]

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MajidNas (talk) 12:05, 5 December 2025 (UTC)[reply]

^{[1] [2] [3] [4] [5] [6] [7] [8] [9]}

MajidNas (talk) 12:10, 5 December 2025 (UTC)[reply]

Could you please use inline citations to show which information is from which source, and write it in your own words without any large language mdoel output? -- NotCharizard ^🗨 13:12, 5 December 2025 (UTC)[reply]

Ok I understand. will share a revised proposal with the inline citations shortly for review. thank you for the suggestions MajidNas (talk) 06:42, 7 December 2025 (UTC)[reply]

As per @Notcharizard suggestions I have written down the most important and pressing updates for the page. these summarises the recent purchase of ESI Group by Keysight Technologies along with the latest updates on the software. Below is the proposal. Please have it updated. thank you.

The infobox needs an update: Developer is now Keysight Technologies (because ESI Group who owned SimulationX was bought by Keysight in 2025.) ^ The latest stable release is Version 2025.1 (4.7.2.82805, DEC 2025) ^ ^. Current product pages is ^

In the intro para, please include that SimulationX is now developed and sold by Keysight Technologies as a part of their Design Engineering & CAE software portfolio ˆ

History: Please include the PR for last two acquisitions with the latest being by Keysight Technologies. ESI Acquires ITIGmBH & Keysight acquires ESI

Libraries: in this section can you mention a summary of all the libraries supported. These are domain-specific libraries for mechanics and multibody systems, power transmission, electrical engineering, hydraulics and pneumatics, thermal-fluid systems, and torsional vibration analysis. ^ this page summarises all the libraries in the current production versions

Interfaces: in this section pls update the link to ‘Unigraphics/NX’ -> Siemens NX. I guess it is now part of Siemens.

In the FEA/FEM please include PAM-Crash / VPS. This is supported by the research paper titled “FMI Based Integration of System Simulation and FEM for efficient Simulation of Realistic Crash Scenarios” presented at the NAFEMS World Congress 2023 (refer)

Can you add a new section : Licensing? In this section we need to mention a modular, the token based licensing model for SimulationX which helps users of all sizes to use specific functional modules and domain libraries according to their requirements. ^ MajidNas (talk) 05:46, 8 December 2025 (UTC)[reply]

Hi @Notcharizard

Just following up on my earlier edit request.

I have rewritten the proposed content in my own words, ensured it is neutral, and added inline citations to independent sources.

When you have time, could you please review the request and let me know if further adjustments are needed?

Thank you! MajidNas (talk) 05:32, 5 January 2026 (UTC)[reply]

As per @Notcharizard suggestions I have written down the most important and pressing updates for the page. these summarises the recent purchase of ESI Group by Keysight Technologies along with the latest updates on the software. Below is the proposal. Please have it updated. thank you.

The infobox needs an update: Developer is now Keysight Technologies (because ESI Group who owned SimulationX was bought by Keysight in 2025.) ^ The latest stable release is Version 2025.1 (4.7.2.82805, DEC 2025) ^ ^. Current product pages is ^

In the intro para, please include that SimulationX is now developed and sold by Keysight Technologies as a part of their Design Engineering & CAE software portfolio ˆ

History: Please include the PR for last two acquisitions with the latest being by Keysight Technologies. ESI Acquires ITIGmBH & Keysight acquires ESI

Libraries: in this section can you mention a summary of all the libraries supported. These are domain-specific libraries for mechanics and multibody systems, power transmission, electrical engineering, hydraulics and pneumatics, thermal-fluid systems, and torsional vibration analysis. ^ this page summarises all the libraries in the current production versions

Interfaces: in this section pls update the link to ‘Unigraphics/NX’ -> Siemens NX. I guess it is now part of Siemens.

In the FEA/FEM please include PAM-Crash / VPS. This is supported by the research paper titled “FMI Based Integration of System Simulation and FEM for efficient Simulation of Realistic Crash Scenarios” presented at the NAFEMS World Congress 2023 (refer)

Can you add a new section : Licensing? In this section we need to mention a modular, the token based licensing model for SimulationX which helps users of all sizes to use specific functional modules and domain libraries according to their requirements. ^ MajidNas (talk) 05:46, 8 December 2025 (UTC)[reply]