The Future of Systems Engineering

Models as Code.
Confidence by Default.

Modeloop is the only visual environment that brings modern DevOps and built-in verification to model-based design.

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10x Faster to Production
0 Binary Lock-in — models are plain JSON
2 Codegen Targets — Python & C from one model
2 Platforms - Available on Web and Desktop

What Modeloop Actually Does

One engineering loop from visual model to generated code.

Modeloop is not just a canvas and it is not just a simulator. It is a model-based engineering workflow where diagrams become source code, tests, and reviewable artifacts.

Generated deliverables

Code, tests, and traceability stay together.

build-log — -zsh
II · Engineering Mandate

Why Modeloop exists,
in three movements.

Modern embedded software is shaped by three forces — the rigor of Model‑Based Systems Engineering, the cadence of Agile delivery, and the gravity of codebase scale. Modeloop is engineered to hold all three at once.

01 The Convergence

MBSE Rigor

Source of truth, not documentation.

Model‑Based Systems Engineering has historically meant heavy artifacts and static reviews. Modeloop reframes the model as a live, executable contract: every block is bound to a requirement, every connection is type‑checked, every change re‑validates the system in seconds.

Agile Velocity

Continuous integration, not waterfall.

Embedded verification has always meant multi-month cycles. Modeloop collapses them to seconds — generate the code, run the tests, on every commit and every branch, without leaving the editor.

↻ The synthesis The two principles are usually treated as opposites. Modeloop treats them as two halves of the same loop.

02 The Missing Piece

The V‑Model defines the shape of safety‑critical engineering. Modeloop closes it.

Architecture FrameworkV-Model & The Modeloop Bridge
Phase ASpecification
Phase BVerification
Modeloop • The BridgeRequirementsStakeholder needsSubsystem DesignArchitecture & contractsFunctional SpecComponent logicThe ModelSingle source of truthUnit TestingAutomated verificationIntegration TestingCross-module validationSystem ValidationFinal verification
Design
Generative Loop
Verified Asset

Specification descends the left arm. Verification ascends the right. Historically, a chasm runs between them — engineers manually translating models into code, then manually authoring tests against the code they just wrote. The chasm is where bugs are born. Modeloop replaces it with a generator: the model is the design, and the model emits both the implementation and the test harness that closes the V.

03 The Complexity Mandate

At nine figures of code, every keystroke is a defect site.

Fig. 03 — Estimated lines of code, embedded systems Source: industry estimates · visual log scale
1969 Apollo 11 Guidance Computer
145K
1997 F‑22 Raptor avionics
1.7M
2011 Boeing 787 Dreamliner
6.5M
2020 Premium passenger vehicle
100M
2025 Modern ADAS · autonomous stack
500M+

Modern embedded software has crossed a threshold. Manual edits do not scale linearly — they compound. A change in one file silently breaks an integration contract three layers away. A unit test passes while the integrated build regresses in ways no human reviewer can catch in time. At 108 lines, the probability of a defect‑free manual change approaches zero.

/ The platform

One workflow, end to end

01 / Models
02 / State Machines
03 / Mathematical Verification
04 / Testing
05 / Simulation
pid_controller.mdl
Modeloop block diagram editor
supervisor.sfc
Idle entry/ count=0 during/ tick++ Active entry/ run() exit/ stop() [start] reset
formal-mapping
Formal Semantics User Model Controller synthesizes Mathematical Model x'(t) = A·x(t) + B·u(t) y(t) = C·x(t) + D·u(t)
unit-testing
TEST CASES TC_01_Norm TC_02_Fail TC_03_Edge TC_01_Normal RUN STEP 1 (0.0s → 5.0s) INPUTS ref_speed 120.0 EXPECTED motor_out 120.0 STEP 2 (5.0s → 10.0s) INPUTS ref_speed 0.0 EXPECTED motor_out 0.0 SIMULATION PASSED
PlotLab — results
Signals ref F_out x_out err 12 signals t [s]

Compose hierarchical block diagrams. Wrap any subsystem into a single reusable block.

Embed hierarchical StateCharts directly in your signal flow — every transition visualized.

Every block diagram is strictly associated with a mathematical representation, guaranteeing correct C code generation by design.

Write unit tests and run simulations to validate the functional correctness of your model.

Run your model and inspect every signal trace in real time

Built Different, For a Reason

Every feature was designed to eliminate a specific pain point in embedded systems engineering.

01 MODULARITY
SUBSYSTEM Σ × in out

Hierarchical Containerization

Without Modeloop: In C, nothing stops you from connecting everything to everything. Spaghetti is the default.

Wrap any subsystem into a single block with explicit inputs and outputs. Reuse it anywhere. Modeloop makes modularity the path of least resistance — at any scale.

02 STATE MANAGEMENT
Idle Running Done start done reset

Visual State Machines

Without Modeloop: Writing nested switch/if-else for FSMs by hand is error-prone. Edge cases get missed. Bugs live at transitions.

Embed StateCharts directly into your signal flow. Hierarchical states, event-driven transitions, every corner case visualized — before a single line of C is generated.

03 SIGNAL ROUTING
temp pres spd stat volt SensorBus 5 signals

Bus Management System

Without Modeloop: Passing 50+ arguments to functions or managing massive global structs. Change one value, risk breaking everything else.

Group hundreds of signals into a single Bus line. Update one field inside a complex bundle without touching the rest. Object-Oriented wiring for embedded systems.

04 LIVE CALIBRATION
BEFORE edit #define recompile reflash restart test ≈ 15 min MODELOOP CALIBRATION Kp = 2.4 < 1ms

Live Parameter Tuning

Without Modeloop: Gain too low? Stop → find #define → recompile → reflash → restart. Feedback loop: 10–15 minutes.

Mark any value as CALIBRATION. Change it at runtime via dashboard, JSON, or script — no recompile, no reflash. A 15-minute engineering cycle collapses into milliseconds.

Generated Code You Can Inspect

Modeloop turns diagrams into readable Python and C artifacts that can be reviewed, tested, and integrated into embedded workflows.

Engineered for Critical Systems

Transparent, reliable, and qualified for the most demanding industries.

Functional Reliability

Our C-Code Generator is architected for predictability and performance. We focus on **Deterministic Execution** and rigorous validation.

  • ✓ 100% Deterministic Signal Flow
  • ✓ Zero Dynamic Memory Allocation
  • ✓ Fixed-Step Solver Precision

Mathematical Truth

Modeloop utilizes advanced Back-to-Back Testing to ensure the generated C code behaves exactly like the Python reference.

Numerical Precision
ε < 10⁻⁷
*Verified across 100+ Golden Models.

Data Sovereignty

Your models and intellectual property never leave your machine.

Modeloop runs entirely local (via Electron or Pyodide). We do not upload your diagrams to cloud servers for simulation or code generation, ensuring maximum confidentiality for industrial R&D.

Modeloop is built by engineers, for engineers. We prioritize transparency and deterministic behavior in every line of generated code.

Designed for
AutomotiveAerospaceRoboticsIndustrial AutomationEnergy SystemsDefenseMedical DevicesIoT

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