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
Requirements Portal by Altium is a requirements management and verification tool integrated directly into Altium’s solutions, including Altium Develop, Altium Agile Teams and Altium Agile Enterprise.
It enables engineering teams developing hardware products and embedded systems to create, store, and manage formalized requirements and link them to designs and verification data.
Each requirement is traceable and connected to upstream system definitions and downstream design and verification artifacts, such as schematics, PCB layouts, BOMs, and test cases, providing visibility from system design through implementation, verification, handoff, and certification.
This helps teams reduce rework, avoid misalignment across disciplines, and simplify compliance activities.
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Why choose Requirements Portal?
Unlike traditional requirements management systems that are rigid, expensive and maintained by dedicated admins, Requirements Portal offers an easy-to-use and easy-to-learn alternative that delivers a fast return on investment for engineering teams.
Compared to document-based approaches that are near-impossible to scale beyond a few hundred requirements, Requirements Portal helps you scale across complex products and multiple projects with thousands of requirements.
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Requirements Portal is the successor to Valispace, created after Altium acquired the company and integrated its technology into the Altium ecosystem.
Requirements Portal is included in Altium Develop, and the starting price includes unlimited collaborators.
API Access
Has API
Yes
API Access
Has API
No
Integrations
Altium Develop
No
Azure OpenAI Service
Yes
Cameo Systems Modeler
Yes
Claude
Yes
Gemini
Yes
OpenAI
Yes
Integrations
Altium Develop
Yes
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
Requirements Portal is included in Altium Develop with unlimited collaborators. Create an Altium Develop workspace for $995/year. Invite unlimited collaborators for free.
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
Yes
Live Training (Online)
Yes
In Person
Yes
Vendor Details
Company Name
Change Vision, Inc.
Founded
2006
Country
Tokyo, Japan
Website
astah.net/products/astah-sysml/
Vendor Details
Company Name
Altium
Founded
1985
Country
United States
Website
www.altium.com/capabilities/requirements/requirements-management
Product Features
Product Features
Product Data Management
Bill of Material Management
No
Document Management
Yes
Formula Management
No
Product Analytics
No
Product Lifecycle Management
No
Testing Management
Yes
Version Control
Yes
Product Lifecycle Management
Change Management
Yes
Compliance Management
Yes
Cost Tracking
No
Design Management
No
Document Management
Yes
Product Data Management
No
Project Management
No
Requirements Management
Yes
Supplier Management
No
Requirements Management
Automated Functional Sizing
Yes
Automated Requirements QA
Yes
Automated Test Generation
No
Automated Use Case Modeling
No
Change Management
Yes
Collaboration
Yes
History Tracking
Yes
Prioritization
Yes
Reporting
Yes
Status Reporting
Yes
Status Tracking
Yes
Summary Reports
Yes
Task Management
No
To-Do List
No
Traceability
Yes
User Defined Attributes
Yes
Test Management
Automation Integration
No
Collaboration Tools
No
Pass/Fail Results Tabulation
Yes
Reporting / Analytics
Yes
Requirements Management
Yes
Test Scheduling
Yes
Test Tracking
Yes
Time/Budget Tracking
Yes