Astah SysML

Astah SysML

Change Vision, Inc.
Astah System Safety

Astah System Safety

Change Vision, Inc.
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About

Astah SysML is a SysML v1 modeling tool for systems engineering and model-based systems engineering (MBSE), developed by Change Vision, Inc. It supports block definition, internal block, requirement, parametric, use case, state machine, activity, and sequence diagrams, plus requirement tables and mind maps. Designs are stored as models, so a change to a block or requirement is reflected in every diagram that uses it. Profiles, XMI import/export, and data exchange with Cameo Systems Modeler are supported. AI Chat Copilot works with your own API key for OpenAI, Azure OpenAI, Claude, Gemini, or an OpenAI-compatible service, and a local MCP server lets external AI agents work with your models. Astah SysML runs on Windows and macOS. Simulation is not included. A 20-day free trial is available. For SysML v2, Change Vision offers separate products that run as Visual Studio Code extensions: SysMLv2 Editor and SysMLv2 Modeler (early access).

About

Astah System Safety is a model-based safety analysis tool for safety-critical systems, developed by Change Vision, Inc. It combines SysML modeling with STAMP/STPA hazard analysis, GSN (Goal Structuring Notation) assurance cases, ASAM SCDL, and UAF in one tool. Safety analyses are linked to the system model, so control structures, hazards, and safety arguments stay traceable to requirements and architecture. It is used by safety engineers in automotive, aerospace, and embedded systems, including safety-case work for standards such as ISO 26262. AI Chat Copilot works with your own API key for OpenAI, Azure OpenAI, Claude, Gemini, or an OpenAI-compatible service, and a local MCP server connects external AI agents to your models. Models can be exchanged through XMI and with Cameo Systems Modeler. Astah System Safety runs on Windows and macOS. FTA and FMEA are not included. A 40-day free trial is available.

Platforms Supported

Windows Supported
Mac Supported
Linux Not Supported
Cloud Not Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Not Supported
Cloud Not Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Systems engineers and MBSE practitioners who model requirements, structure, and behavior in SysML

Audience

Safety engineers and systems engineers in automotive, aerospace, and embedded systems

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

$140/year
1-year license: $140. 1-year floating license: $270. 20-day free trial.
Free Version Not Supported
Free Trial Supported

Pricing

$550 per year
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Change Vision, Inc.
Founded: 2006
Japan
astah.net/products/astah-sysml/

Company Information

Change Vision, Inc.
Founded: 2006
Japan
astah.net/products/astah-system-safety/

Alternatives

Cameo Systems Modeler

Cameo Systems Modeler

Dassault Systèmes

Alternatives

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Astah SysML

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SysMLv2 Editor

SysMLv2 Editor

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Astah UML

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Astah Professional

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Eclipse Papyrus

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Cameo Systems Modeler

Cameo Systems Modeler

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Categories

Categories

Integrations

Azure OpenAI Service Supported
Cameo Systems Modeler Supported
Claude Supported
Gemini Supported
OpenAI Supported

Integrations

Azure OpenAI Service Not Supported
Cameo Systems Modeler Not Supported
Claude Not Supported
Gemini Not Supported
OpenAI Not Supported
Claim Astah SysML and update features and information
Claim Astah SysML and update features and information
Claim Astah System Safety and update features and information
Claim Astah System Safety and update features and information