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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
IBM® Engineering Systems Design Rhapsody® (also known as Rational Rhapsody) and its suite of tools provide an effective approach to modeling and systems design, helping organizations navigate the complexities of product and system development. As a component of the IBM Engineering portfolio, Rhapsody fosters a collaborative environment for systems engineers, accommodating various modeling standards like UML, SysML, UAF, and AUTOSAR. Additionally, it supports the management of defense frameworks, including DoDAF, MODAF, and UPDM, while facilitating compliance with critical industry standards such as DO-178, DO-178B/C, and ISO 26262. The platform enables rapid simulation and prototyping, allowing for continuous validation and the early detection of errors when they are more affordable to rectify. By employing automatic consistency checks, Rhapsody enhances agility and promotes reuse, ultimately contributing to a reduction in both recurring and non-recurring expenses. This comprehensive toolset not only streamlines the design process but also empowers teams to innovate more effectively.
API Access
Has API
Yes
API Access
Has API
No
Integrations
Azure OpenAI Service
Yes
Cameo Systems Modeler
Yes
Claude
Yes
Gemini
Yes
Kovair QuickSync
No
LDRA Tool Suite
No
OpenAI
Yes
SodiusWillert ReqXChanger
No
eQube®-DaaS
No
Integrations
Azure OpenAI Service
No
Cameo Systems Modeler
No
Claude
No
Gemini
No
Kovair QuickSync
Yes
LDRA Tool Suite
Yes
OpenAI
No
SodiusWillert ReqXChanger
Yes
eQube®-DaaS
Yes
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
No price information available.
Free Trial
Yes
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
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
Yes
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
IBM
Founded
1911
Country
United States
Website
www.ibm.com/products/systems-design-rhapsody
Product Features
Product Features
Enterprise Architecture
Application Portfolio Management
No
Architecture Governance
No
Capability Mapping
No
Diagramming
No
Idea Management
No
Modeling & Simulation
No
Project Management
No
Risk Assessment
No
Transformation Roadmapping
No
Version Control
No