
From SysML v1 to SysML v2
SysML v2 is not v1.8. This guide gives systems engineers a transferable mental model (not a mechanical element mapping) for making the transition with confidence.
Download WhitepaperHolistic protection and seamless traceability for cybersecurity, functional safety, and the Cyber Resilience Act
OverviewMethodological excellence and tailored tools for model-based system and software engineering.
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OverviewSystem complexity is growing. Market cycles are shortening. Classic, document-centric development is hitting clear limits. Model-Based Systems Engineering (MBSE) replaces isolated spreadsheets with a consistent, living system model and becomes the decisive lever for faster innovation cycles and fewer development risks.
Model-Based Systems Engineering (MBSE) replaces document-centric development with a consistent system model. Instead of maintaining requirements in Word documents and recording architecture decisions in PowerPoint presentations, a model is created that keeps system behaviour, structure and requirements in a semantic context.
The philosophy behind it: the digital model is the single source of truth, not the static document. All disciplines work on the same, interconnected representation of the system. Changes are immediately transparent and traceable for everyone.
MBSE is a means of making complex systems manageable and conducting evidence chains more efficiently.
Companies typically introduce MBSE for one of two different reasons.
Compliance-driven: To meet stringent industry standards such as ISO 26262, ASPICE or DO-178C. The risk: MBSE degenerates into a purely bureaucratic obligation with no real benefit.
Value-driven: To sustainably improve quality and efficiency. The focus is on early model validation, error-free impact analyses and cross-disciplinary reuse of components.
Our recommendation is the value-driven entry: it delivers the actual return and covers the compliance requirements at the same time.
Automotive Tier-1: Safety analysis automated from the system architecture
For a leading automotive supplier, we used MBSE to build the decisive bridge between the system architecture and the processes of functional safety. Based on a model-based system analysis and complete requirements traceability, the System FMEA could be derived seamlessly from the system architecture and built in an automated fashion.
The safety analysis is now 100% consistent with the real architecture at all times. Manual, error-prone reconciliations are eliminated entirely. Development efforts for ISO 26262 compliance were drastically reduced and release cycles massively accelerated. → Reference: FORVIA HELLA
Mechanical and plant engineering: MBSE introduction in a mid-sized company
Together with a mid-sized mechanical and plant engineering company, we piloted the introduction of model-based development. The previous document-based approach had no defined method for separating the problem side (stakeholder requirements, laws and standards) from the technical solution side. Technical solutions were therefore often uncritically carried over from existing projects, which blocked innovative further development.
Through the introduction of a multi-layered architecture, we were able to sharpen the responsibilities of all clients, ensure compliance with laws and industry standards, and document technical decisions in a traceable manner. Training employees anchored this new way of thinking as a long-term success pattern in the company.
MBSE is not a universal remedy. It delivers no value when the framework conditions are not right.
Small projects with low complexity. With manageable interfaces, a small team and no variants, the initial effort exceeds the later benefit. A company developing an isolated control unit for an existing machine is simply faster with document-based coordination.
Unstable organisations. MBSE cannot heal structural deficits: unclear responsibilities, chaotic change management. When requirements are changed informally on an ad-hoc basis and there is no functioning configuration management, MBSE digitises the chaos without resolving it.
Lack of commitment. Without active management support and the team’s willingness to leave familiar document silos behind, the methodological culture change fails. MBSE requires time for onboarding, and the company must consciously allow for it.
Our experience from over 18 years of project practice: a purely compliance-driven MBSE rarely pays for itself. Only the value-driven entry delivers the real return — and fulfils compliance automatically as a by-product. If MBSE is still too early for your current maturity level, we will say so.
These questions from our project experience help you with an initial orientation.
1. Complexity: Is our development task sufficiently complex, both in terms of the product structure and the large number of responsibilities and disciplines involved?
2. Change dynamics: Do we have high dynamics in requirements and need to analyse the impact of changes across disciplinary boundaries quickly and without errors?
3. Management support: Is senior management fully on board with this cultural change and actively freeing up the necessary resources and budgets for the transition?
4. Team readiness: Is the development team willing to leave familiar document silos behind and embrace new, interconnected ways of working?
5. Process foundation: Are our fundamental processes and responsibilities within the company clarified, or do we need to restructure procedures in parallel?
10 Ways to Improve Systems Engineering
Ten evidence-based practices for systems engineers who want to ship better products — from requirements discipline to model-based approaches and tooling.
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Compliance & Functional Safety
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Efficiency & Variant Management
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SysML v2 & AI Support
There is no single correct modelling approach — there is only the one that suits your project. Together, we analyse the concrete framework conditions based on four key questions: What competencies already exist? What tools and processes are in use? What core problems are in the foreground? And what thinking patterns characterise your team?
We provide fully vendor-independent support — whether a technological migration from SysML v1 to SysML v2, the introduction of Capella or Arcadia, or the development of custom domain-specific languages. Co-authoring CONSENS for mechanical engineering and developing ArchE for CARIAD are among our references. → Custom Tooling & Domain-Specific Languages
Success depends on the precise application of the method, not on the method itself.
MBSE with Natural Language
The biggest barrier to MBSE adoption isn't tooling — it's the SysML learning curve. This whitepaper shows how natural language patterns and model generation turn your existing requirements into formal SysML v2 models, without training your entire engineering team.
From SysML v1 to SysML v2
The structural shift from SysML v1 to v2: the definition/usage principle as the key concept, how 4 port types unify into one mechanism, and migration guidance for teams planning the move.
Selecting the right tools determines whether MBSE is lived efficiently in practice. We support you vendor-independently in selecting the appropriate modelling tool, whether you want to use a language standard like SysML (CATIA Magic, IBM Rhapsody, Sparx Enterprise Architect, MathWorks SystemComposer), aim for a specialised approach (Capella, PREEVision, SpicySE, itemis CREATE) or wish to have a modelling tool developed individually by us.
We are convinced of the advantages of a “best-of-breed” strategy, i.e. selecting the best tool for each specific task. However, we always evaluate this approach strictly on a customer-specific basis: the supposedly best requirements tool on the market with complex collaborative workflows delivers no added value if only two people work with it in the end. In such cases, the supposedly “inferior” but already seamlessly integrated standard solution is often the more economical and efficient choice.
At least as important as the tool selection is the seamless integration of the toolchain. With itemis ANALYZE we offer a proven platform for connecting model-based tools to higher-level ALM and PLM systems, from IBM ELM, Siemens Polarion, PTC Codebeamer/Integrity to Jama Connect. Where standard adapters fall short, we develop custom integration solutions. → Reference: I.G.Bauerhin: 70% more efficient through itemis ANALYZE
More on toolchain integration: Toolchain Integration & Tool Selection
The concrete need and methodology determine the tool, not the other way around.
Whether an all-in-one solution or a networked “best-of-breed” landscape: to create a consistent overall architecture, we follow three clear principles.
Single source of truth per data type. Each piece of data (a requirement, an architecture element) has exactly one clearly defined point of origin.
Continuous traceability layer. Connections between tools must be traceable without gaps. With itemis ANALYZE we offer a vendor-independent layer for this purpose that links data across system boundaries. → Requirements Traceability
Synchronisation instead of duplication. Data is intelligently synchronised or linked between systems, rather than being blindly duplicated and thereby creating sources of error.
The successful introduction of Model-Based Systems Engineering is a structured, transparent process.
1. MBSE Maturity Assessment & Goal Definition. Directly in the project kick-off, we jointly analyse your current maturity level. We review the current state of your development processes and define a clear, shared target picture, backed by measurable KPIs, so that success remains steerable from the very beginning.
2. Tool-agnostic tailoring of the methodology. Standard frameworks such as RFLP provide a good basic structure, but rarely fit your reality one-to-one. We tailor the methodology, independent of any tool, precisely to your project and your company. Our focus is on recipient-oriented outputs that create immediately measurable added value for your systems development.
3. Accompaniment in the pilot project. We accompany you in a suitable pilot project directly in day-to-day operations: professionally in concrete modelling and practically in the introduction and correct use of new tools.
4. Scaling & roll-out. After the successful pilot, we broaden the approach. We support the roll-out to further projects and departments on request through active involvement directly in your architecture development.
Accompanying enablement: training your teams. A new process only works if the people master it. In parallel with all steps, we train the staff involved through targeted training in the fundamentals of MBSE, modern requirements engineering and the use of AI in everyday engineering.
AI-Assisted ASPICE Compliance
Knowledge graphs and LLM agents for automated ASPICE process assessment: three-layer architecture, two-pass consistency check, and a cost-benefit analysis showing 23 weeks down to 6.
Schedule a meeting with Dr. Alexander Nyßen and Benjamin Alders.

SysML v2 is not v1.8. This guide gives systems engineers a transferable mental model (not a mechanical element mapping) for making the transition with confidence.
Download Whitepaper
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