Master the complexity of V&V for critical industrial systems

Yest is a model-based test design IDE for complex industrial systems.

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Design, generate, and automate functional tests while maintaining full control over test coverage and requirements traceability.

Complex critical systems

Variability constraints

Long and costly cycles

IVVQ teams face growing structural challenges

Increasing system complexity

Growing number of interfaces and combinatorial complexity

Difficult collaboration

Silos between systems, software, hardware, maintenance, verification, and validation teams

Compliance and traceability constraints

Demanding engineering processes

Insufficient test coverage

Difficult to identify and design all relevant test cases

Long and costly validation cycles

Late, and therefore costly, detection of defects

Hard-to-control behavior

Unforeseen interactions between complex subsystems

The result: Higher costs, delays, and increased quality risks

Measurable results for your organization

Tangible benefits at every stage of your process.

Improved collaboration

A shared understanding between V&V teams and project stakeholders
A shared test strategy defined early in collaboration with system engineering teams

Faster IVVQ cycles

40%
less time spent on test design
50%
faster defect detection

Drastic cost reduction

-60%
in maintenance effort

More robust testing

50%
fewer flaky tests

Fewer risks. Greater efficiency. Controlled quality.

Yest reinvents IVVQ with AI-augmented Model-Based Testing (MBT)

Yest is a model-based test design IDE enhanced with AI.

Visual modeling

Design functional test models for system verification, validation, qualification, and acceptance across MIL, SIL, and HIL environments.

Automatic test generation

Generate comprehensive and structured test scenarios and test cases.

Keyword-driven automation

Deploy automated tests across test benches, simulation environments, and software testing frameworks.

AI-augmented test design

Leverage AI to enhance and accelerate test design while keeping engineers in control.

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Thales uses Yest throughout the IVVQ cycle

Yest has enabled us to standardize our testing practices throughout the IVVQ cycle.

The MBT approach with Yest makes it possible to detect defects much earlier in the engineering cycles.

The model becomes a shared reference for test maintenance, collaboratively developed by the team.

Yest has enabled us to standardize our testing practices throughout the IVVQ cycle.

Yest helps V&V teams gain greater recognition for their work .

Bruno Besace - Head of Discipline IVVQ Thalès LAS OME

4 key applications throughout the engineering cycle

Systems Engineering / MBSE

Early validation of functional architecture outputs

Design & Production

Verification and validation of systems during the design and production phases

Simulation / MBD

Verification of simulation results and digital twins

Qualification & Acceptance

Qualification and acceptance of final systems

How does it work?

A five-step, AI-assisted process to transform your testing approach:

Import & reuse

Import your existing test assets. Harmonize and structure them using Yest’s simple yet expressive visual representation.

Visual modeling

Create test models that are easy to understand for all project teams. The specifying test model is linked to functional requirements.

Automatic generation

Generate test scenarios and test cases using powerful combinatorial techniques. Publish them to ALM and test management toolchains.

Test bench execution

Generate executable test scripts using keywords and deploy them across different test benches, simulators, and software testing environments.

Maintenance & functional enhancements

Propagate changes across your test models and generated tests, while keeping updates under control.and controllably propagate any changes made within the Yest project.