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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 

Screenshots View All

Screenshots View All

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 

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