Average Ratings 0 Ratings
Average Ratings 0 Ratings
Description
Astah SysML helps systems engineers capture requirements, structure, and behavior in SysML v1 without the weight of a large enterprise suite. Block definition and internal block diagrams, requirement diagrams and tables, parametric diagrams, and use case, state machine, activity, and sequence diagrams are all included, along with mind maps for early concept work.
Each diagram is a view of one shared model, so updating a requirement or block keeps every related diagram in step. Assist functions such as double-click creation, creating multiple elements from text, and alignment guides reduce drawing time. Models can be exchanged through XMI and with Cameo Systems Modeler, and profiles let teams extend the language.
For AI-assisted work, AI Chat Copilot connects to OpenAI, Azure OpenAI, Claude, Gemini, or any OpenAI-compatible endpoint through your own API key, and a local MCP server lets external AI agents read and work with your models.
Astah SysML runs locally on Windows and macOS. It does not include simulation. Developer: Change Vision, Inc. Current version: 11.0 (March 2026).
Description
The software is fully compatible with the UML 2.X standard metamodel, accommodating a variety of diagrams including class, object, use case, component, deployment, composite structure, sequence, communication, statechart, activity, timing, interaction overflow, information flow, and profile diagrams. In addition to UML, it also facilitates modeling with SysML diagrams such as requirement, block definition, internal block, and parametric diagrams. It is optimized for Retina (High-DPI) displays, ensuring that all diagrams, text, and icons appear exceptionally sharp and can be easily exported as High-DPI images in formats like PNG and JPEG. Users can effortlessly discover and install numerous third-party extensions, many of which are open source and available on GitHub. The tool also incorporates a range of shorthands in the Quick Edit feature, allowing for the swift creation of elements and relationships simultaneously, including sub-classes and supporting interfaces, thus enhancing overall productivity. Additionally, this versatility makes it an invaluable resource for professionals seeking comprehensive modeling capabilities.
API Access
Has API
Yes
API Access
Has API
No
Integrations
Azure OpenAI Service
Yes
Cameo Systems Modeler
Yes
Claude
Yes
Gemini
Yes
OpenAI
Yes
Integrations
Azure OpenAI Service
No
Cameo Systems Modeler
No
Claude
No
Gemini
No
OpenAI
No
Pricing Details
$140/year
1-year license: $140. 1-year floating license: $270. 20-day free trial.
Free Trial
Yes
Free Version
No
Pricing Details
$99 per user
Free Trial
No
Free Version
No
Deployment
Web-Based
No
On-Premises
Yes
iPhone App
No
iPad App
No
Android App
No
Windows
Yes
Mac
Yes
Linux
No
Chromebook
No
Deployment
Web-Based
No
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
Yes
Mac
Yes
Linux
Yes
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Vendor Details
Company Name
Change Vision, Inc.
Founded
2006
Country
Tokyo, Japan
Website
astah.net/products/astah-sysml/
Vendor Details
Company Name
StarUML
Website
staruml.io